You Think You Know About Human Biology? Pass This Biology Quiz
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A sensory neuron of the peripheral nervous system takes nerve impulses from sensory receptors to the ________.
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Skin.
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Central nervous system.
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Muscles.
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Autonomic nervous system.
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Human biology is an interdisciplinary area of academic study that examines humans through the influences and interplay of many diverse fields such as genetics, evolution, physiology, anatomy, epidemiology, anthropology, ecology, nutrition, population genetics, and sociocultural influences.
You Think You Know About Human Biology? Pass This Biology Quiz
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- 2.
The brain has many functions. What is the part that controls involuntary actions and is also a link with the spinal cord?
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Medulla oblongata
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Cerebrum
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Midbrain
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Pituitary gland
Correct Answer
A. Medulla oblongataExplanation
The medulla oblongata is the part of the brain that controls involuntary actions and serves as a link between the brain and the spinal cord. It is responsible for regulating essential functions such as breathing, heart rate, blood pressure, and digestion.Rate this question:
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- 3.
Spinal cord and brain are surrounded by protective membranes known as _____.
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Epineurium
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Meninges
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Neurilemma
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Mylein sheath
Correct Answer
A. MeningesExplanation
The correct answer is "Meninges." The spinal cord and brain are protected by a set of three membranes known as meninges. These membranes provide a protective barrier and help cushion the central nervous system from external forces. The meninges consist of the dura mater, arachnoid mater, and pia mater.Rate this question:
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- 4.
A patient is admitted after a head injury and sinks rapidly into a coma. An MRI scan indicates an extradural hemorrhage because excessive blood can be detected between the.......
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Skull bones and Dura mater.
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Dura mater and arachnoid.
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Arachnoid and Pia mater.
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Pia mater and brain surface.
Correct Answer
A. Skull bones and Dura mater.Explanation
Extradural hemorrhage refers to bleeding that occurs between the skull bones and the dura mater, which is the outermost layer of the meninges that surround the brain. In this case, the excessive blood detected on the MRI scan indicates that there is bleeding in this specific space, leading to the patient sinking rapidly into a coma. The other options, such as between the dura mater and arachnoid, arachnoid and pia mater, or pia mater and brain surface, do not accurately describe the location of the bleeding in relation to the skull bones and dura mater.Rate this question:
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- 5.
A person with an injury to his frontal lobe may have difficulty in ……
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Remembering past events
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Writing
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Seeing
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Sleeping
Correct Answer
A. Remembering past eventsExplanation
An injury to the frontal lobe can impair a person's ability to remember past events. The frontal lobe is responsible for many cognitive functions, including memory. Damage to this area can disrupt the encoding and retrieval of memories, making it difficult for individuals to recall past events. Other functions, such as writing, seeing, and sleeping, are not directly associated with the frontal lobe and would not be affected by an injury to this specific area of the brain.Rate this question:
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- 6.
In situations like that shown in the figure below, your reactions are always .......
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Rapid, voluntary and sudden.
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Involuntary with a thinking process.
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Immediate, involuntary and sudden.
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Voluntary without the need of conscious thought.
Correct Answer
A. Immediate, involuntary and sudden.Explanation
In situations like the one shown in the figure, reactions are immediate because they occur without delay. They are also involuntary because they happen without conscious control or thought. Additionally, they are sudden because they occur abruptly and without warning.Rate this question:
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- 7.
In the figure shown below, what are (A) and (B) respectively?
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Sensory neuron, connector neuron
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Motor neuron, connector neuron
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Sensory neuron, synapse
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Dorsal root ganglion, grey mater
Correct Answer
A. Sensory neuron, synapseExplanation
In the figure shown, (A) represents a sensory neuron and (B) represents a synapse. A sensory neuron is responsible for transmitting sensory information from the sensory receptors to the central nervous system. A synapse is a junction between two neurons where the electrical signal is transmitted from one neuron to another. Therefore, the correct answer is sensory neuron, synapse.Rate this question:
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- 8.
What is the purpose of cerebro-spinal fluid?
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It acts as a pillow providing a support or protection for the brain
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It fills the sub-arachnoid space between the arachnoid mater and the pia mater
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It reduces the weight of the brain
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All of the these
Correct Answer
A. All of the theseExplanation
Cerebro-spinal fluid serves multiple purposes. Firstly, it acts as a pillow, providing support and protection for the brain by cushioning it against sudden movements or impacts. Secondly, it fills the sub-arachnoid space between the arachnoid mater and the pia mater, which helps in maintaining the shape and structure of the brain. Lastly, it also reduces the weight of the brain, making it easier for the organ to function and move within the skull. Therefore, all of these statements are correct.Rate this question:
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- 9.
The difference between reflex action and walking is that, walking …..
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Is autonomic and rapid response.
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Does not involve any kind of thinking.
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Is conscious and unhurried.
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Is a spontaneous reaction.
Correct Answer
A. Is conscious and unhurried.Explanation
Walking is a conscious and unhurried action because it involves the deliberate movement of our legs and requires coordination and balance. It is not an automatic or reflexive action like many other bodily functions. Walking also involves thinking and decision-making, as we choose where to go and how to navigate obstacles. Therefore, the correct answer is that walking is conscious and unhurried.Rate this question:
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- 10.
In a reflex arc, which of the following can we find synapses between?
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Two neurons
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A neuron and a gland cell
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A neuron and a muscle cell
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All the answers are correct.
Correct Answer
A. All the answers are correct.Explanation
In a reflex arc, synapses can be found between two neurons, a neuron and a gland cell, and a neuron and a muscle cell. This is because a reflex arc involves the transmission of information from a sensory neuron to an interneuron in the spinal cord or brain, and then to a motor neuron that connects to either a gland cell or a muscle cell. Therefore, all the given answers are correct.Rate this question:
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- 11.
After a car accident, Rhodri had a lot of difficulty planning his day. This is most likely the result of damage to which lobe?
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Temporal
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Parietal
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Frontal
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Occipital
Correct Answer
A. FrontalExplanation
Rhodri's difficulty in planning his day after a car accident suggests damage to the frontal lobe. The frontal lobe is responsible for executive functions such as planning, decision-making, and problem-solving. Damage to this lobe can lead to difficulties in organizing and carrying out tasks, which aligns with Rhodri's difficulty in planning his day.Rate this question:
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- 12.
Which of the following is/are characteristic of the parasympathetic system?
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Causes the pupil to constrict
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Promotes digestion of food
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Retards the heartbeat
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All of the above
Correct Answer
A. All of the aboveExplanation
The parasympathetic system is responsible for rest and digest activities. It causes the pupil to constrict, promoting better focus on nearby objects. It also promotes digestion of food by increasing saliva production and stimulating the release of digestive enzymes. Additionally, the parasympathetic system slows down the heartbeat, helping to conserve energy during periods of rest and relaxation. Therefore, all of the given options are characteristic of the parasympathetic system.Rate this question:
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- 13.
Which of the following is/(are) characteristic of the sympathetic system?
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Inhibits the digestive tract.
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Dilates the bronchi.
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Accelerates the heart beats.
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All of the above.
Correct Answer
A. All of the above.Explanation
The sympathetic system is responsible for the "fight or flight" response in the body. It activates various physiological changes to prepare the body for action. Inhibiting the digestive tract allows for more blood flow to be directed towards the muscles and organs needed for immediate action. Dilating the bronchi increases oxygen intake and enhances respiratory function. Accelerating the heart beats increases blood flow and oxygen delivery to the muscles. Therefore, all of the given characteristics are characteristic of the sympathetic system.Rate this question:
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- 14.
Which of these is not a reflex action?
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Secretion of saliva
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Learning how to read music score sheet
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Withdrawal of hand due to a needle prick
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Blinking of eyes when an insect comes very near to the eyes.
Correct Answer
A. Learning how to read music score sheetExplanation
Reflex actions are involuntary and automatic responses to stimuli. They are not learned behaviors. Secretion of saliva, withdrawal of hand due to a needle prick, and blinking of eyes when an insect comes near are all examples of reflex actions. However, learning how to read music score sheet is a cognitive process that involves conscious thinking and understanding, not an automatic reflex action.Rate this question:
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- 15.
Which is the correct sequence of the components of a reflex arc?
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Receptors → Muscles→ Sensory neuron→ Motor neuron→ Spinal cord
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Receptors → Motor neuron → Spinal cord → Sensory neuron → Muscle
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Receptors → Spinal cord → Sensory neuron → Motor neuron → Muscle
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Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle
Correct Answer
A. Receptors → Sensory neuron → Spinal cord → Motor neuron → MuscleExplanation
The correct sequence of the components of a reflex arc is receptors, sensory neuron, spinal cord, motor neuron, and muscle. In a reflex arc, the receptors detect a stimulus, such as touch or temperature, and send signals to the sensory neuron. The sensory neuron then transmits these signals to the spinal cord, where they are processed. The spinal cord then sends signals to the motor neuron, which in turn sends signals to the muscle, causing it to contract or relax in response to the stimulus.Rate this question:
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- 16.
The sympathetic nervous system is primarily concerned with ______ whereas the parasympathetic system is primarily concerned with ______.
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Mobilizing the body in response to stress, maintaining the body at rest.
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The release of acetylcholine onto target organs, the release of adrenaline
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Activation of skeletal muscle, activation of smooth muscle.
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The contraction of the wall of the urinary bladder, contraction of the wall of the intestine.
Correct Answer
A. Mobilizing the body in response to stress, maintaining the body at rest.Explanation
The sympathetic nervous system is primarily concerned with mobilizing the body in response to stress. It activates the "fight or flight" response, increasing heart rate, dilating blood vessels, and releasing adrenaline. On the other hand, the parasympathetic system is primarily concerned with maintaining the body at rest. It promotes relaxation, conserves energy, and regulates functions such as digestion and elimination.Rate this question:
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- 17.
All of the following are examples of reflex action except .......
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When light acts as a stimulus, the pupil of the eye changes in size.
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Sudden withdrawal of hand when pricked by a pin.
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Answering questions in exams.
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Coughing or sneezing, because of irritants in the nasal passages.
Correct Answer
A. Answering questions in exams.Explanation
Reflex actions are involuntary responses to stimuli that occur without conscious thought. They are automatic and rapid, aiming to protect the body from harm. Examples of reflex actions include the pupil changing size in response to light, sudden withdrawal of hand when pricked by a pin, and coughing or sneezing due to irritants in the nasal passages. Answering questions in exams, on the other hand, is a voluntary action that requires conscious thought and decision-making. Therefore, it is not considered a reflex action.Rate this question:
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- 18.
Which of the following is a reflex action?
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Planning for better life.
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Studying your lessons.
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Baby's hand grasping the finger of his mother.
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Learning how to use a skateboard.
Correct Answer
A. Baby's hand grasping the finger of his mother.Explanation
A reflex action is an involuntary and automatic response to a stimulus. When a baby's hand grasps the finger of his mother, it is a reflex action known as the palmar grasp reflex. This reflex is present in newborns and is triggered when an object is placed in their palm, causing them to grasp it tightly. This reflex is important for the baby's survival and development, as it helps them hold onto their caregiver and ensures their safety.Rate this question:
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- 19.
The cerebellum is a major feature of the hindbrain located behind the top part of the brain stem. It helps in ____.
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Breathing and controlling blood pressure
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Balance and coordination
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Voluntary reflex
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Speech and hearing
Correct Answer
A. Balance and coordinationExplanation
The cerebellum is responsible for balance and coordination. It receives information from the sensory systems, such as the eyes and ears, as well as from the muscles and joints, and uses this information to coordinate movements and maintain balance. This is why damage to the cerebellum can result in problems with balance, coordination, and fine motor skills.Rate this question:
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- 20.
Which part of the brain regulates your heart beat?
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Pons varolii
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Medulla oblongata
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Hypothalamus
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Thalamus
Correct Answer
A. Medulla oblongataExplanation
The medulla oblongata is a part of the brainstem that controls various autonomic functions, including regulating the heart rate. It contains specialized cells called cardiac centers that receive signals from the body and adjust the heart rate accordingly. These centers can increase or decrease the heart rate depending on the body's needs. Therefore, the medulla oblongata is responsible for regulating the heart rate.Rate this question:
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- 21.
Which side of the brain has more neurons in right-handed people?
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Right
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Left
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Both are the same.
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Differs from one right-handed person to another.
Correct Answer
A. LeftExplanation
The left side of the brain has more neurons in right-handed people because the left side of the brain is responsible for controlling the right side of the body, and it is generally more dominant in right-handed individuals. The left side of the brain is also associated with language processing and logical thinking, which are more prevalent in right-handed individuals.Rate this question:
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- 22.
How fast can information travel in your brain?
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Up to 120 metres per second
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Up to 120 metre per minute
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Up to 120 metres per hour
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Up to 12 meters per second
Correct Answer
A. Up to 120 metres per secondExplanation
Information can travel in the brain at speeds of up to 120 metres per second. This means that signals can be transmitted and processed quickly within the brain, allowing for rapid communication between different regions and facilitating various cognitive processes.Rate this question:
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- 23.
The structure ......... regulates visual and auditory reflexes.
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A
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B
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C
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D
Correct Answer
A. AExplanation
The structure A regulates visual and auditory reflexes.Rate this question:
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- 24.
…… is responsible for going to bed at night and waking up in the morning around the same times from day to day even in weekends.
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Midbrain
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Hypothalamus
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Cerebellum
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Medulla oblongata
Correct Answer
A. HypothalamusExplanation
The hypothalamus is responsible for regulating the body's internal clock, also known as the circadian rhythm. This includes the sleep-wake cycle, which involves going to bed at night and waking up in the morning at consistent times. The hypothalamus receives input from the eyes regarding light exposure, and it uses this information to release hormones that help regulate sleep and wakefulness. It also coordinates with other brain regions to control body temperature, hormone production, and other physiological processes that are important for maintaining a regular sleep schedule.Rate this question:
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- 25.
"Most of reflex arc signals do not immediately go to the brain". Which of the following statements is not a reason for this fact?
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Because motor neurons carry impulses away from the brain and spinal cord.
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Because In reflex actions, the signals do not travel up to the brain but through the motor neuron.
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Because the brain will analyze the signal after the reflex action.
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Because the brain would take longer time to react and this might increase any damage to the body.
Correct Answer
A. Because the brain would take longer time to react and this might increase any damage to the body.Explanation
The statement "Because the brain would take longer time to react and this might increase any damage to the body" is not a reason for the fact that most reflex arc signals do not immediately go to the brain. The correct reason is that in reflex actions, the signals do not travel up to the brain but through the motor neuron. This allows for a quicker response to the stimulus, as the signal only needs to travel a short distance to reach the motor neuron and initiate a reflex action.Rate this question:
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- 26.
Center of feeling thirsty and hungry lies in the …….
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Medulla oblongata
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Midbrain
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Thalamus
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Hypothalamus
Correct Answer
A. HypothalamusExplanation
The hypothalamus is responsible for regulating various bodily functions, including hunger and thirst. It contains specialized cells that monitor the body's hydration and nutrient levels. When these levels are low, the hypothalamus sends signals to the body to initiate feelings of thirst and hunger, prompting the individual to seek food and water. Therefore, the center of feeling thirsty and hungry lies in the hypothalamus.Rate this question:
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- 27.
What is structure (R) in the figure below?
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Memory center
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Insula lobe
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Smell and taste centers
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Temporal lobe
Correct Answer
A. Insula lobeExplanation
The correct answer is Insula lobe. The insula lobe, also known as the insular cortex, is a region of the brain located deep within the lateral sulcus. It is involved in various functions, including the perception of taste, processing of emotions, and self-awareness. It is also involved in the integration of sensory information from different parts of the body.Rate this question:
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- 28.
Which of the following points are incorrect in regards to the brain?
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The brain is soft
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The brain consist of structures which are not interconnected
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The brain is a jelly-like organ
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The brain is never inactive while an individual lives
Correct Answer
A. The brain consist of structures which are not interconnectedExplanation
The given answer is incorrect because the brain actually consists of structures that are interconnected. The brain is made up of various regions and structures, such as the cerebral cortex, hippocampus, and amygdala, which are all interconnected through a complex network of neurons. These connections allow for communication and integration of information within the brain, enabling various cognitive functions and behaviors.Rate this question:
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- 29.
Effector organs of the ANS include all of the following EXCEPT…….
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Arteriolar smooth muscle.
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Heart.
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Medulla oblongata.
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Glands.
Correct Answer
A. Medulla oblongata.Explanation
The medulla oblongata is not an effector organ of the autonomic nervous system (ANS). It is a part of the brainstem that plays a role in controlling vital functions such as respiration, heart rate, and blood pressure, but it does not directly control or regulate the activities of other organs or tissues in the body. The other options listed, arteriolar smooth muscle, heart, and glands, are all examples of effector organs that are innervated by the ANS and respond to its signals.Rate this question:
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- 30.
The following stages occur in a reflex action. The correct order of the stages is ……….
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1 – 2 – 3 – 4
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1 – 4 – 2 – 3
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4 – 3 – 1 – 2
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2 – 4 – 3 – 1
Correct Answer
A. 2 – 4 – 3 – 1Explanation
The correct order of the stages in a reflex action is 2 - 4 - 3 - 1.Rate this question:
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- 31.
All of the following are common properties shared by the brain and the spinal cord except …..
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Each is protected by bony tissues
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They are coated by the same meninges
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Impulses in a reflex action reach each of them at the same time
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Each has a nervous tissue composed of white and gray matter
Correct Answer
A. Impulses in a reflex action reach each of them at the same timeExplanation
The brain and the spinal cord share several common properties, such as being protected by bony tissues and being coated by the same meninges. Additionally, both the brain and the spinal cord have a nervous tissue composed of white and gray matter. However, impulses in a reflex action do not reach each of them at the same time. Reflex actions involve a rapid response to a stimulus, and the pathway for these impulses differs between the brain and the spinal cord.Rate this question:
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- 32.
You spot a football flying towards your face in a park. Without thinking, you duck. In this reflex action, what is the receptor?
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Light receptors in the eyes
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Pressure receptors in the skin
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Sound receptors in the ears
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Sound receptors in the skin
Correct Answer
A. Light receptors in the eyesExplanation
In this scenario, the correct answer is "Light receptors in the eyes." When a football is flying towards your face, the eyes detect the presence of the object and send signals to the brain. The brain then processes this information and triggers the reflex action of ducking to avoid getting hit. The eyes contain light receptors called photoreceptors, specifically rods and cones, which are responsible for detecting light and transmitting visual information to the brain. In this reflex action, the eyes act as the receptor by detecting the incoming football.Rate this question:
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- 33.
Which of the following is NOT an advantage of having reflex actions?
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Reflex actions prevent a person from feeling pain.
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Reflex actions take care of basic bodily functions like breathing and heart rate.
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Reflex actions are involuntary.
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Reflex actions do not require the brain to think about responses before acting.
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Reflex actions allow a quick response to danger.
Correct Answer
A. Reflex actions prevent a person from feeling pain.Explanation
Reflex actions do not prevent a person from feeling pain. In fact, reflex actions are often triggered by pain as a means of protecting the body from further harm. The purpose of reflex actions is to provide rapid and automatic responses to stimuli without the need for conscious thought or decision-making. These actions help to ensure the body's survival by allowing quick reactions to potential threats or dangers.Rate this question:
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- 34.
You are in a building when someone shouts, “fire!” Without thinking, you start running. In this reflex action, what is the stimulus?
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The fire
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The shout of “fire”
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People running
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The muscles in your legs
Correct Answer
A. The shout of “fire”Explanation
In this scenario, the stimulus that triggers the reflex action of running is the shout of "fire." When someone shouts "fire," it creates a sudden loud noise that alerts and startles us, causing an immediate response of running away from the potential danger. This reflex action is an automatic response to the perceived threat and is not consciously controlled.Rate this question:
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- 35.
The following is a list of muscles in the human body: Which of these muscles are consistently under the control of the autonomic nervous system?
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1, 3, and 4
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5 only
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1, 2, and 3
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2 and 5
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2 and 3
Correct Answer
A. 2 and 5Explanation
Muscles that are consistently under the control of the autonomic nervous system are those that are involuntary, meaning they cannot be consciously controlled. Option 2 includes muscles that fit this description, as the autonomic nervous system regulates the smooth muscles found in organs such as the digestive system and blood vessels. Option 5 also fits this criteria, as the autonomic nervous system controls the cardiac muscle, which is responsible for the contraction of the heart.Rate this question:
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- 36.
Which of the following statement(s) is correct?(1). Respiration is involuntary and may be also voluntary.(2). Involuntary respiration is controlled mainly by the medulla oblongata while voluntary respiration is controlled by the cerebral cortex.
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Both statements are correct.
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Statement (1) only is correct because involuntary respiration is controlled by the spinal cord.
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Both statements are incorrect.
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Statement (1) only is correct because voluntary respiration is controlled by the hypothalamus.
Correct Answer
A. Both statements are correct.Explanation
Both statements are correct. Respiration can be both involuntary and voluntary. Involuntary respiration is primarily controlled by the medulla oblongata, while voluntary respiration is controlled by the cerebral cortex.Rate this question:
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- 37.
The peripheral nervous system includes the nerves, which ____.
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Extend to other parts of the body including muscles and organs.
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Lie outside of the central nervous system (CNS).
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Allow us to react to stimuli in our environment.
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All of them.
Correct Answer
A. All of them.Explanation
The peripheral nervous system includes the nerves that extend to other parts of the body including muscles and organs, lie outside of the central nervous system (CNS), and allow us to react to stimuli in our environment. Therefore, the correct answer is "All of them."Rate this question:
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- 38.
The part of the body that receives information from all over the body in order to make decisions is called the _____.
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Peripheral nervous system
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Sympathetic nervous system
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Central nervous system
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Parasympathetic nervous system
Correct Answer
A. Central nervous systemExplanation
The central nervous system is responsible for receiving information from all over the body in order to make decisions. It consists of the brain and spinal cord, which receive and process sensory information from the peripheral nervous system. The central nervous system then sends out motor commands to the rest of the body, allowing it to respond to the information received.Rate this question:
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- 39.
How many pairs of cranial nerves do humans have?
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4
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12
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16
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24
Correct Answer
A. 12Explanation
Humans have 12 pairs of cranial nerves. These nerves originate from the brain and are responsible for various functions such as sensory perception, motor control, and autonomic functions. Each pair of cranial nerves serves a specific region or function in the head and neck, including the senses of smell, vision, hearing, and taste, as well as controlling facial muscles and regulating heart rate and blood pressure.Rate this question:
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- 40.
Which part of the brain controls higher mental activities like reasoning?
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Temporal lobe
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Frontal lobe
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Medulla oblongata
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Parietal lobe
Correct Answer
A. Frontal lobeExplanation
The frontal lobe is responsible for controlling higher mental activities like reasoning. It is involved in decision making, problem-solving, planning, and cognitive functions such as attention, memory, and language. This part of the brain plays a critical role in executive functions and is involved in regulating emotions and social behavior.Rate this question:
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- 41.
Which part of the brain is responsible for processing visual information?
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Temporal lobe
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Occipital lobe
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Parietal lobe
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Medulla oblongata
Correct Answer
A. Occipital lobeExplanation
The occipital lobe is responsible for processing visual information. It is located at the back of the brain and contains the primary visual cortex, which receives and processes visual stimuli from the eyes. This lobe plays a crucial role in interpreting and making sense of what we see.Rate this question:
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- 42.
Which part of the brain is responsible for hearing and smelling?
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Occipital lobe
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Cerebellum
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Temporal lobe
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Frontal lobe
Correct Answer
A. Temporal lobeExplanation
The temporal lobe is responsible for hearing and smelling. It contains the primary auditory cortex, which processes sound information, and the olfactory cortex, which processes smell information. The occipital lobe is responsible for vision, the cerebellum is responsible for coordination and balance, and the frontal lobe is responsible for higher cognitive functions such as decision-making and problem-solving.Rate this question:
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- 43.
The thin and convoluted outer layer of grey matter that covers the cerebral hemispheres is the …..
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Medulla oblongata
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Thalamus
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Cerebral cortex
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Meninges
Correct Answer
A. Cerebral cortexExplanation
The correct answer is the cerebral cortex. The cerebral cortex is the thin and convoluted outer layer of grey matter that covers the cerebral hemispheres. It is responsible for higher brain functions such as perception, memory, language, and consciousness. The medulla oblongata is located in the brainstem and controls vital functions such as breathing and heart rate. The thalamus is a relay station for sensory information. The meninges are the protective membranes that surround the brain and spinal cord.Rate this question:
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- 44.
When sympathetic nervous system is activated it causes the secretion of ……
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Adrenaline which inhibits sweating and heart rate.
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Acetylcholine which increases sweating and heart rate.
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Acetylcholine which causes pupil dilation.
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Adrenaline which increases blood pressure.
Correct Answer
A. Adrenaline which increases blood pressure.Explanation
When the sympathetic nervous system is activated, it triggers the release of adrenaline. Adrenaline, also known as epinephrine, is a hormone that prepares the body for a "fight or flight" response. One of the effects of adrenaline is an increase in blood pressure. This is because adrenaline causes the blood vessels to constrict, which leads to an increase in blood pressure. Therefore, the correct answer is "Adrenaline which increases blood pressure."Rate this question:
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- 45.
Which nerves are attached to the brain and emerge from the skull?
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Cranial Nerves
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Spinal Nerves
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Thoracic Nerves
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Sacral Nerves
Correct Answer
A. Cranial NervesExplanation
Cranial nerves are the nerves that are attached to the brain and emerge from the skull. These nerves are responsible for transmitting sensory and motor information between the brain and various parts of the body. They control functions such as vision, hearing, smell, taste, and facial movements.Rate this question:
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- 46.
"Fight or flight" response is related to ...... nervous system. While "rest and digest" response is related to .......nervous system.
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Sympathetic, parasympathetic
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Parasympathetic, Central
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Central, parasympathetic
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Parasympathetic, sympathetic.
Correct Answer
A. Sympathetic, parasympatheticExplanation
The "fight or flight" response is a physiological reaction that occurs in response to a perceived threat or danger. It is associated with the sympathetic nervous system, which prepares the body for action by increasing heart rate, dilating blood vessels, and releasing stress hormones. On the other hand, the "rest and digest" response is a state of relaxation and digestion. It is associated with the parasympathetic nervous system, which slows heart rate, stimulates digestion, and conserves energy. Therefore, the correct answer is Sympathetic, parasympathetic.Rate this question:
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- 47.
The organ which is not innervated by the parasympathetic nervous system is .......
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Adrenal gland
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Eye pupil
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Lung
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Small intestine
Correct Answer
A. Adrenal glandExplanation
The adrenal gland is not innervated by the parasympathetic nervous system. Instead, it is primarily regulated by the sympathetic nervous system. The sympathetic nervous system stimulates the release of adrenaline and noradrenaline from the adrenal gland, which helps prepare the body for "fight or flight" responses. The parasympathetic nervous system, on the other hand, is responsible for rest and relaxation responses in the body.Rate this question:
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- 48.
Which of the following is not an involuntary action?
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Vomiting
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Salivation
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Sneezing
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Chewing
Correct Answer
A. ChewingExplanation
Chewing is not an involuntary action because it is a deliberate and conscious movement of the jaw and muscles involved in the process of breaking down food. Vomiting, salivation, and sneezing are all involuntary actions that are controlled by the autonomic nervous system and occur without conscious control.Rate this question:
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- 49.
Because of the processing that occurs in the ....... lobe, we are able to recognize that two objects touching the skin at nearby points are distinct, rather than one object.
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Temporal
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Occipital
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Parietal
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Frontal
Correct Answer
A. ParietalExplanation
The parietal lobe is responsible for processing sensory information, including touch. It helps us recognize that two objects touching the skin at nearby points are distinct, rather than one object. The other lobes mentioned in the options (temporal, occipital, and frontal) have different functions and are not directly involved in this specific task.Rate this question:
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Mar 22, 2023Quiz Edited by
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