Nervous System 1 (Cpcc-nc)

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  • 1/100 Questions

    What are the 2 subdivisions of the Autonomic Nervous System?

    • Sympathetic division & Parasympathetic division
    • Involuntary division & Voluntary division
    • Superior division & Inferior division
    • Sensory division & Motor division
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Nervous System Quizzes & Trivia
About This Quiz

Explore key aspects of the nervous system with the 'Nervous System 1 (CPCC-NC)' quiz. Assess your knowledge on brain functions, cranial nerves, and cerebral lobes. This quiz is designed to enhance understanding of human anatomy, particularly the nervous system, and is aligned with CPCC-NC standards.

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  • 2. 

    What structure travels down the vertebral column inside the vertebral foramen?

    • The spinal cord.

    • The cranial nerves

    • The sacral nerves

    • The axillary nerve

    Correct Answer
    A. The spinal cord.
    Explanation
    The correct answer is the spinal cord. The vertebral column, also known as the spinal column, is a series of vertebrae that protect and support the spinal cord. The vertebral foramen is the opening in each vertebra through which the spinal cord passes. Therefore, the structure that travels down the vertebral column inside the vertebral foramen is the spinal cord.

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  • 3. 

    Which cranial nerve is responsible for smell?

    • Cranial nerve # 1 (Olfactory)

    • Cranial nerve # 4 (Trochlear)

    • Cranial nerve # 5 (Trigeminal)

    • Cranial nerve # 6 (Abducens)

    Correct Answer
    A. Cranial nerve # 1 (Olfactory)
    Explanation
    The cranial nerve responsible for smell is cranial nerve #1, also known as the Olfactory nerve. This nerve is responsible for transmitting sensory information related to smell from the nasal cavity to the brain. It plays a crucial role in our sense of smell and is involved in detecting and identifying different odors.

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  • 4. 

    Which cranial nerves are responsible for vision and eyeball movement?

    • Cranial nerves # 2 and 3

    • Cranial nerves # 1 and 2

    • Cranial nerves # 3 and 4

    • Cranial nerves # 1, 2, and 3

    Correct Answer
    A. Cranial nerves # 2 and 3
    Explanation
    Cranial nerve #2, also known as the optic nerve, is responsible for vision. It carries visual information from the retina to the brain. Cranial nerve #3, also known as the oculomotor nerve, is responsible for eyeball movement. It controls the movement of most of the muscles that move the eyeball and also controls the constriction of the pupil. Therefore, cranial nerves #2 and #3 are responsible for both vision and eyeball movement.

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  • 5. 

    What substance fills the ventricles of the brain?

    • Cerebrospinal fluid

    • Mucus

    • Lymph

    • Cytoplasm

    Correct Answer
    A. Cerebrospinal fluid
    Explanation
    Cerebrospinal fluid is the correct answer because it is a clear, colorless fluid that fills the ventricles of the brain. It acts as a cushion, protecting the brain and spinal cord from injury. It also helps to remove waste products from the brain and transport nutrients and hormones to the brain cells. Mucus, lymph, and cytoplasm are not substances that fill the ventricles of the brain.

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  • 6. 

    What do you call the series of outer membranes that cover the brain?

    • Mesencephalon

    • Mesoderm

    • Mesenteries

    • Meninges.

    Correct Answer
    A. Meninges.
    Explanation
    The correct answer is "Meninges." The meninges are a series of outer membranes that cover and protect the brain. They consist of three layers: the dura mater, the arachnoid mater, and the pia mater. These membranes help cushion the brain and spinal cord from injury and also contain cerebrospinal fluid, which provides further protection and nourishment to the brain.

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  • 7. 

    How many ventricles are in the brain?

    • Four

    • Two

    • Eight

    • Six

    Correct Answer
    A. Four
    Explanation
    The brain has four ventricles. These are fluid-filled spaces that are responsible for producing and circulating cerebrospinal fluid (CSF) throughout the brain and spinal cord. The ventricles play a crucial role in protecting and cushioning the brain, as well as providing nutrients and removing waste products. They are interconnected and located within different regions of the brain, including the lateral ventricles, third ventricle, and fourth ventricle.

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  • 8. 

    What is the scientific name for a nerve cell?

    • Axon

    • Neuroglia

    • Neuron

    • Soma

    Correct Answer
    A. Neuron
    Explanation
    A neuron is the correct answer because it is the scientific name for a nerve cell. Neurons are specialized cells that transmit information throughout the body by generating electrical impulses. They have a unique structure, including a cell body, dendrites, and an axon, which allows them to communicate with other neurons and carry out their function in the nervous system. Neuroglia refers to the supportive cells in the nervous system, while axon and soma are specific parts of a neuron.

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  • 9. 

    Which part of the brain is divided into lobes?

    • Diencephalon

    • Brain stem

    • Cerebrum

    • Cerebellum

    Correct Answer
    A. Cerebrum
    Explanation
    The cerebrum is the largest part of the brain and is divided into lobes. The lobes of the cerebrum are responsible for different functions such as sensory perception, motor control, language, and memory. Each lobe has specialized areas that work together to process and integrate information from the senses, control movement, and perform higher cognitive functions. Therefore, the cerebrum is the correct answer as it is the part of the brain that is divided into lobes.

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  • 10. 

    Which of the following is NOT a section of the brain?

    • Brain Stem

    • Meninges

    • Cerebellum

    • Cerebrum

    Correct Answer
    A. Meninges
    Explanation
    The meninges is not a section of the brain, but rather a protective covering that surrounds the brain and spinal cord. It consists of three layers: the dura mater, arachnoid mater, and pia mater. These layers help protect the delicate brain tissue from injury and infection. The brain stem, cerebellum, and cerebrum are all sections of the brain that play important roles in various functions such as motor control, sensory processing, and higher cognitive functions.

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  • 11. 

    Sensory neurons carrying impulses to the brain is referred to as _______________.

    • Descending tracts

    • Ascending tracts

    • Pyramidal (corticospinal) tracts

    • Rubrospinal tracts

    Correct Answer
    A. Ascending tracts
    Explanation
    Sensory neurons carry impulses from the sensory receptors to the brain, allowing us to perceive and interpret sensory information. These impulses travel through specific pathways called ascending tracts. Ascending tracts transmit sensory information such as touch, temperature, pain, and proprioception from the peripheral nervous system to the brain for processing and interpretation. Therefore, the correct answer is ascending tracts.

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  • 12. 

    Which of the following is NOT one of the meninges?

    • Pia Mater

    • Periosteum

    • Dura Mater

    • Arachnoid Mater

    Correct Answer
    A. Periosteum
    Explanation
    The periosteum is not one of the meninges. The meninges are the three layers of protective membranes that surround the brain and spinal cord. They include the pia mater, dura mater, and arachnoid mater. The periosteum, on the other hand, is a dense layer of connective tissue that covers the outer surface of bones. It is not part of the meninges.

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  • 13. 

    Which part of the brain stem controls vital body functions?

    • Midbrain

    • Pons

    • Medulla

    • Cerebellum

    Correct Answer
    A. Medulla
    Explanation
    The medulla is the part of the brain stem that controls vital body functions. It is responsible for regulating functions such as breathing, heart rate, blood pressure, and digestion. It also plays a role in coordinating reflexes and maintaining balance. The medulla contains various nuclei that receive and transmit signals to and from different parts of the body, allowing for the regulation and control of these essential functions.

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  • 14. 

    Which cerebral lobe is responsible for hearing?

    • Frontal lobe

    • Temporal lobe

    • Occipital lobe

    • Parietal lobe

    Correct Answer
    A. Temporal lobe
    Explanation
    The temporal lobe is responsible for hearing. This lobe is located on the sides of the brain, above the ears. It contains the primary auditory cortex, which processes sound information and allows us to perceive and interpret sounds. Damage to the temporal lobe can result in hearing impairments or difficulties in understanding and processing auditory information.

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  • 15. 

    Which division of the Autonomic Nervous System is associated with the "Fight or Flight" response?

    • Empathetic division

    • Lymphatic division

    • Sympathetic division

    • Parasympathetic division

    Correct Answer
    A. Sympathetic division
    Explanation
    The sympathetic division of the Autonomic Nervous System is associated with the "Fight or Flight" response. This response is triggered in stressful or dangerous situations and prepares the body for action. The sympathetic division increases heart rate, dilates blood vessels, and releases stress hormones such as adrenaline, which helps the body respond to the perceived threat. This division is responsible for activating the body's physiological response to stress and preparing it for intense physical activity.

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  • 16. 

    Which part of the brain is the largest section?

    • Cerebrum

    • Cerebellum

    • Brain Stem

    • Spinal Cord

    Correct Answer
    A. Cerebrum
    Explanation
    The cerebrum is the largest part of the brain, responsible for higher-order functions such as thinking, memory, and voluntary movement. It is divided into two hemispheres and is highly convoluted with ridges and grooves called gyri and sulci. The cerebrum controls sensory perception, motor function, language, and problem-solving abilities. It also plays a crucial role in emotions and consciousness. The cerebrum is the most developed and complex part of the brain, making it the largest section.

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  • 17. 

    What do you call the chambers of the brain?

    • Ventricles

    • Cerebral cavities

    • Cerebral foramen

    • Cerebral fissures

    Correct Answer
    A. Ventricles
    Explanation
    The chambers of the brain are called ventricles. These are interconnected cavities filled with cerebrospinal fluid (CSF) that provide cushioning and support to the brain. The ventricles play a crucial role in regulating the flow and distribution of CSF throughout the brain and spinal cord. They are responsible for producing and circulating CSF, which helps in maintaining the chemical stability of the brain and removing waste products. Therefore, the correct answer is ventricles.

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  • 18. 

    Which of the following meninges is located under the Dura Mater?

    • Periosteum

    • Pia Mater

    • Subarachnoid space

    • Arachnoid Mater

    Correct Answer
    A. Arachnoid Mater
    Explanation
    The Arachnoid Mater is located under the Dura Mater. The meninges are the protective membranes that surround the brain and spinal cord. The Dura Mater is the outermost layer, and the Arachnoid Mater is the middle layer. The Arachnoid Mater is separated from the Dura Mater by the Subarachnoid space, which contains cerebrospinal fluid. The Pia Mater is the innermost layer that directly covers the brain and spinal cord. Therefore, the correct answer is Arachnoid Mater.

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  • 19. 

    Which cerebral lobe is responsible for vision?

    • Frontal lobe

    • Occipital lobe

    • Parietal lobe

    • Temporal lobe

    Correct Answer
    A. Occipital lobe
    Explanation
    The occipital lobe is responsible for vision. It is located at the back of the brain and contains the primary visual cortex, which processes visual information received from the eyes. The occipital lobe helps in perceiving and interpreting visual stimuli, such as shapes, colors, and movement. It plays a crucial role in our ability to see and understand the world around us.

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  • 20. 

    Which cranial nerve is responsible for tongue and pharynx function?

    • Cranial nerve #12 (Hypoglossal)

    • Cranial nerve # 11 (Accessory)

    • Cranial nerve # 9 (Glossopharyngeal)

    • Cranial nerve # 10 (Vagus)

    Correct Answer
    A. Cranial nerve # 9 (Glossopharyngeal)
    Explanation
    The glossopharyngeal nerve (cranial nerve #9) is responsible for tongue and pharynx function. This nerve innervates the muscles involved in swallowing, as well as the taste buds on the posterior third of the tongue. It also provides sensory innervation to the pharynx and tonsils.

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  • 21. 

    What do you call the area between the Arachnoid Mater and the Pia Mater?

    • Synaptic cleft.

    • Cerebral foramen

    • Subarachnoid space.

    • Blood/Brain Barrier.

    Correct Answer
    A. Subarachnoid space.
    Explanation
    The correct answer is Subarachnoid space. The subarachnoid space is the area between the arachnoid mater and the pia mater, which are two of the three layers of the meninges that surround and protect the brain and spinal cord. This space is filled with cerebrospinal fluid and contains blood vessels that supply nutrients to the brain. It also serves as a cushion, protecting the brain from injury. The synaptic cleft is a small gap between neurons where neurotransmitters are released, the cerebral foramen is an opening in the skull, and the blood/brain barrier is a protective barrier that regulates the passage of substances from the bloodstream into the brain.

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  • 22. 

    Which part of the brain stem controls the heart beat?

    • The Hypothalamus.

    • The Pons.

    • The Medulla.

    • The Midbrain.

    Correct Answer
    A. The Medulla.
    Explanation
    The medulla is the correct answer because it is responsible for regulating vital functions such as heart rate, blood pressure, and breathing. It contains specialized cells that receive signals from the body and adjust the heart rate accordingly. The hypothalamus plays a role in regulating body temperature and hormone production, while the pons and midbrain are involved in other functions such as motor coordination and sensory processing. Therefore, the medulla is specifically responsible for controlling the heart beat.

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  • 23. 

    What type of cells line the ventricles and spinal canal?

    • Ependymal cells

    • Astrocytes

    • Oligodendrocytes

    • Microglia

    Correct Answer
    A. Ependymal cells
    Explanation
    Ependymal cells are the correct answer because they are the type of cells that line the ventricles and spinal canal. These cells have cilia on their surface, which help in the circulation of cerebrospinal fluid (CSF) within the brain and spinal cord. Ependymal cells also play a role in the production of CSF and provide support to the nervous tissue.

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  • 24. 

    Which of the meninges is the outermost?

    • Pia Mater

    • Dura Mater

    • Arachnoid Mater

    • Periosteum

    Correct Answer
    A. Dura Mater
    Explanation
    The correct answer is Dura Mater. The meninges are the three protective layers that surround the brain and spinal cord. The dura mater is the outermost layer and is the toughest and most durable of the three. It provides a strong protective barrier for the brain and spinal cord against external forces and trauma. The pia mater is the innermost layer, closely adhering to the brain and spinal cord, while the arachnoid mater is the middle layer. The periosteum is not a part of the meninges; it is a layer that covers the bones.

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  • 25. 

    What are the types of motor pathways?

    • Involuntary Motor pathways & Voluntary Motor Pathways

    • Direct Motor pathways & Indirect Motor pathways

    • Neuromuscular Motor pathways & Skeletomuscular Motor pathways

    • Dorsal Motor pathways & Ventral Motor pathways

    Correct Answer
    A. Direct Motor pathways & Indirect Motor pathways
    Explanation
    The correct answer is Direct Motor pathways & Indirect Motor pathways. Motor pathways are responsible for transmitting signals from the brain to the muscles, allowing for voluntary and involuntary movements. Direct motor pathways are involved in conscious, voluntary movements, while indirect motor pathways are responsible for subconscious, involuntary movements. These pathways work together to coordinate and control various motor functions in the body.

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  • 26. 

    What is a neuron?

    • A nerve cell

    • A nerve fiber

    • A nerve

    • A nerve plexus

    Correct Answer
    A. A nerve cell
    Explanation
    A neuron is a specialized type of cell that is responsible for transmitting signals in the nervous system. It is the basic building block of the nervous system and is involved in various functions such as receiving, processing, and transmitting information. Neurons have a unique structure that allows them to communicate with other cells through electrical and chemical signals. They play a crucial role in coordinating and controlling the activities of the body, including sensory perception, motor control, and cognitive processes.

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  • 27. 

    What substance is found in the Subarachnoid space?

    • Cerebrospinal fluid

    • Lymph

    • Mucus

    • Cytoplasm

    Correct Answer
    A. Cerebrospinal fluid
    Explanation
    The substance found in the Subarachnoid space is cerebrospinal fluid. This clear, colorless fluid surrounds the brain and spinal cord, providing cushioning and protection. It also helps to remove waste products, deliver nutrients, and regulate the pressure within the central nervous system.

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  • 28. 

    Which of the meninges is characterized as being very tough?

    • Arachnoid Mater

    • Pia Mater

    • Periosteum

    • Dura Mater

    Correct Answer
    A. Dura Mater
    Explanation
    The correct answer is Dura Mater. The dura mater is the outermost layer of the meninges and is characterized as being very tough. It is composed of dense fibrous connective tissue and provides protection and support for the brain and spinal cord.

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  • 29. 

    Which part of the brain consists of two hemispheres?

    • Brain stem.

    • Cerebellum.

    • Cerebrum.

    • Hypothalamus

    Correct Answer
    A. Cerebrum.
    Explanation
    The cerebrum is the largest part of the brain and is divided into two hemispheres, the left and right hemispheres. Each hemisphere controls the opposite side of the body and is responsible for various functions such as thinking, reasoning, memory, and voluntary movements. The cerebrum plays a crucial role in higher cognitive processes and is involved in complex tasks such as language, problem-solving, and decision-making.

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  • 30. 

    To feel a sensation from a location different from the area of stimulation is known as _______.

    • Psychosomatic illness.

    • Hyperalgesia.

    • Referred pain.

    • Phantom limb pain.

    Correct Answer
    A. Referred pain.
    Explanation
    Referred pain is the sensation felt in a location different from the area of stimulation. This occurs when the brain misinterprets signals from internal organs as coming from a different area of the body. For example, a heart attack may cause pain in the left arm or jaw. This phenomenon is believed to occur due to the convergence of sensory nerves from different regions onto the same spinal cord segments.

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  • 31. 

    What is the function of the Autonomic Nervous System?

    • To regulate the activity of internal organs.

    • To regulate the activity of skeletal muscles.

    • To regulate the activity of the brain.

    • To relay information from the brain to the spinal cord.

    Correct Answer
    A. To regulate the activity of internal organs.
    Explanation
    The function of the Autonomic Nervous System is to regulate the activity of internal organs. This system controls involuntary actions such as heart rate, digestion, and breathing. It works automatically without conscious control and helps maintain homeostasis in the body by adjusting the functioning of various organs in response to internal and external stimuli.

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  • 32. 

    Which of the following is NOT a subdivision of the brain stem?

    • Midbrain

    • Pons

    • Hypothalamus

    • Medulla

    Correct Answer
    A. Hypothalamus
    Explanation
    The hypothalamus is not a subdivision of the brain stem. It is a small but crucial part of the diencephalon, which is located below the thalamus and above the pituitary gland. The hypothalamus plays a vital role in regulating various bodily functions, such as body temperature, hunger, thirst, and hormone production. Unlike the midbrain, pons, and medulla, which are all subdivisions of the brain stem, the hypothalamus is not directly involved in controlling basic physiological processes.

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  • 33. 

    Which ventricle is located in each cerebral hemisphere?

    • Third ventricle

    • Fourth ventricle

    • Cerebral ventricle

    • Lateral ventricle

    Correct Answer
    A. Lateral ventricle
    Explanation
    The lateral ventricle is located in each cerebral hemisphere. It is the largest of the ventricles and plays a crucial role in the production and circulation of cerebrospinal fluid (CSF). The lateral ventricles are responsible for providing nutrients to the brain, removing waste products, and maintaining a stable environment for optimal brain function. They are interconnected with the third ventricle through the interventricular foramen, allowing for the flow of CSF throughout the brain.

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  • 34. 

    What do you call the electrical activity of cerebral neurons?

    • Cerebral Conductivity.

    • Brain Waves.

    • Cerebral Volts.

    • Brain Watts.

    Correct Answer
    A. Brain Waves.
    Explanation
    Brain waves refer to the electrical activity of cerebral neurons. It is a term used to describe the rhythmic patterns of electrical impulses generated by the brain. These waves can be measured using an electroencephalogram (EEG) and are associated with different states of consciousness, such as deep sleep, relaxation, or concentration. Cerebral conductivity, cerebral volts, and brain watts are not accurate terms to describe this phenomenon.

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  • 35. 

    What surrounds gray matter of the spinal cord?

    • Vertebrae.

    • Adipose.

    • White matter.

    • Lymph.

    Correct Answer
    A. White matter.
    Explanation
    The gray matter of the spinal cord is surrounded by white matter. White matter is made up of myelinated nerve fibers that transmit signals to and from the gray matter. It forms the outer layer of the spinal cord, while the gray matter is located in the center. This arrangement allows for efficient communication between different parts of the spinal cord and the brain. Vertebrae, adipose tissue, and lymph do not surround the gray matter of the spinal cord.

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  • 36. 

    Which cerebral lobe is responsible for complex thought?

    • Occipital lobe.

    • Temporal lobe.

    • Frontal lobe.

    • Parietal lobe.

    Correct Answer
    A. Frontal lobe.
    Explanation
    The frontal lobe is responsible for complex thought. It is involved in higher cognitive functions such as decision-making, problem-solving, planning, and reasoning. It also plays a role in personality, emotions, and social behavior. The frontal lobe is located at the front of the brain, just behind the forehead. It is the largest lobe in the human brain and is highly interconnected with other brain regions, allowing for the integration of information from different areas and the execution of complex cognitive tasks.

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  • 37. 

    Which type of brain waves are associated with concentration/problem solving?

    • Theta brain waves

    • Delta brain waves

    • Beta brain waves

    • Alpha brain waves

    Correct Answer
    A. Beta brain waves
    Explanation
    Beta brain waves are associated with concentration and problem-solving. These brain waves have a frequency range of 12-30 Hz and are typically observed when a person is actively engaged in mental tasks that require focus and attention. They are also present during periods of heightened alertness and cognitive processing. Therefore, beta brain waves are the most suitable type of brain waves associated with concentration and problem-solving.

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  • 38. 

    What are the First and Second ventricles of the brain known as?

    • Cerebral ventricles

    • Lateral ventricles

    • Spinal ventricles

    • Neural ventricles

    Correct Answer
    A. Lateral ventricles
    Explanation
    The first and second ventricles of the brain are known as the lateral ventricles. These ventricles are the largest and most prominent in the brain, and they are located in the cerebral hemispheres. They are responsible for producing and circulating cerebrospinal fluid, which provides nutrients and protection to the brain and spinal cord. The lateral ventricles are connected to the third ventricle through a narrow passage called the interventricular foramen.

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  • 39. 

    What structures fuse together laterally to form a spinal nerve?

    • Cranial nerves and vertebrae

    • Dendrites and Axons

    • The Dorsal root and Ventral root

    • Sensory neurons and Motor neurons

    Correct Answer
    A. The Dorsal root and Ventral root
    Explanation
    The correct answer is the Dorsal root and Ventral root. The dorsal root and ventral root are two structures that fuse together laterally to form a spinal nerve. The dorsal root contains sensory neurons that carry sensory information from the body to the spinal cord, while the ventral root contains motor neurons that carry motor commands from the spinal cord to the muscles and glands. When these two roots merge, they form a spinal nerve that carries both sensory and motor information.

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  • 40. 

    What are the irregular ridges on the surface of the brain called?

    • Cerebral folds

    • Convolutions

    • Cranial wrinkles

    • Cisternae

    Correct Answer
    A. Convolutions
    Explanation
    The irregular ridges on the surface of the brain are called convolutions. These convolutions increase the surface area of the brain, allowing for more neurons to be packed into a smaller space. This increased surface area is important for higher cognitive functions and allows for more complex processing to occur.

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  • 41. 

    Which cerebral lobe is responsible for voluntary control of skeletal muscles?

    • Frontal lobe.

    • Temporal lobe.

    • Parietal lobe.

    • Occipital lobe.

    Correct Answer
    A. Frontal lobe.
    Explanation
    The frontal lobe is responsible for voluntary control of skeletal muscles. It is located at the front of the brain and plays a crucial role in motor functions, decision making, problem-solving, and planning. This lobe contains the primary motor cortex, which sends signals to the muscles to initiate voluntary movements. Damage to the frontal lobe can result in difficulties in controlling muscle movements and can lead to conditions such as paralysis or muscle weakness.

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  • 42. 

    What is the scientific name for the midbrain?

    • Mesencephalon

    • Mesentery

    • Meninges

    • Microglia

    Correct Answer
    A. Mesencephalon
    Explanation
    The correct answer is Mesencephalon. The mesencephalon is a region of the brain that is located between the diencephalon and the pons. It is also known as the midbrain and plays a crucial role in relaying sensory and motor information. The term "mesencephalon" is derived from the Greek words "meso" meaning middle and "encephalon" meaning brain.

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  • 43. 

    Which type of brain waves are associated with deep sleep in adults?

    • Alpha brain waves.

    • Theta brain waves.

    • Delta brain waves.

    • Beta brain waves.

    Correct Answer
    A. Delta brain waves.
    Explanation
    Delta brain waves are associated with deep sleep in adults. These brain waves have a frequency of 0.5 to 4 Hz and are characterized by high amplitude. During deep sleep, the brain is in a state of rest and relaxation, and the body undergoes important restorative processes. Delta waves are typically observed during this stage, indicating a deep and restful sleep. Alpha brain waves are associated with a relaxed and awake state, while theta brain waves are associated with light sleep and drowsiness. Beta brain waves are associated with an alert and active state of mind.

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  • 44. 

    Motor impulses going from the brain to the motor neurons describes what happens with ________________.

    • Brain wave emissions.

    • Motor pathways.

    • A muscle action.

    • General sense perception.

    Correct Answer
    A. Motor pathways.
    Explanation
    Motor impulses going from the brain to the motor neurons describe what happens with motor pathways. Motor pathways are the routes through which the brain sends signals to the motor neurons, which in turn control muscle actions. This process allows for the initiation and coordination of voluntary movements in the body.

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  • 45. 

    Which sensory pathways can create referred pain?

    • Spinocerebellar pathways

    • Spinothalamic (Anterolateral) pathways

    • Dorsal Column-medial Lemniscal pathways

    • Motor pathways

    Correct Answer
    A. Spinothalamic (Anterolateral) pathways
    Explanation
    The spinothalamic (anterolateral) pathways can create referred pain. Referred pain occurs when pain is felt in a different area of the body than the actual source of the pain. The spinothalamic pathways transmit pain and temperature sensations from the body to the brain. When there is a dysfunction or injury in these pathways, the brain may interpret the pain signals as originating from a different location, leading to referred pain.

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  • 46. 

    Which division of the Autonomic Nervous System is associated with rest and digestion?

    • Parasympathetic division.

    • Sympathetic division.

    • Empathetic division.

    • Gastroenteric division.

    Correct Answer
    A. Parasympathetic division.
    Explanation
    The parasympathetic division of the autonomic nervous system is associated with rest and digestion. It helps to conserve and restore energy by slowing down the heart rate, increasing digestion and gastrointestinal activity, and promoting relaxation. This division is responsible for the "rest and digest" response, which allows the body to rest, recover, and digest food properly. In contrast, the sympathetic division is associated with the "fight or flight" response, which prepares the body for action and increases heart rate, blood pressure, and respiration. The empathetic division and gastroenteric division are not recognized divisions of the autonomic nervous system.

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  • 47. 

    Which of the meninges contains blood vessels that supply the brain?

    • Periosteum

    • Arachnoid Mater

    • Dura Mater

    • Pia Mater

    Correct Answer
    A. Pia Mater
    Explanation
    The Pia Mater is the innermost layer of the meninges and it is in direct contact with the brain. It contains many blood vessels that supply the brain with oxygen and nutrients. These blood vessels are responsible for nourishing the brain and ensuring its proper functioning.

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  • 48. 

    Which cranial nerve is responsible for internal organ function?

    • Accessory

    • Vagus

    • Hypoglossal

    • Vestibulocochlear

    Correct Answer
    A. Vagus
    Explanation
    The cranial nerve responsible for internal organ function is the Vagus nerve. It is the tenth cranial nerve and it innervates many organs in the chest and abdomen, including the heart, lungs, liver, and intestines. The Vagus nerve plays a crucial role in regulating various bodily functions such as heart rate, digestion, and breathing. Dysfunction of the Vagus nerve can lead to various health issues, including gastrointestinal disorders and heart rhythm abnormalities.

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  • 49. 

    Which ventricle connects with the 2 lateral ventricles?

    • Medial Lateral ventricle

    • Third ventricle

    • Fourth ventricle

    • Cerebral ventricle

    Correct Answer
    A. Third ventricle
    Explanation
    The third ventricle connects with the two lateral ventricles.

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  • Mar 21, 2023
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  • Oct 31, 2012
    Quiz Created by
    Carmenwilliams

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