Skeletal Muscle And Nervous System Quiz

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Keb1980
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Quizzes Created: 13 | Total Attempts: 23,165
Questions: 20 | Attempts: 1,416

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Nervous System Quizzes & Trivia

Questions and Answers
  • 1. 

    The nervous system is divided into two major divisions:

    • A.

      Central nervous system and peripheral nervous system

    • B.

      Central nervous system and autonomic nervous system

    • C.

      Brain and spinal cord

    • D.

      Peripheral nervous system and the brain

    Correct Answer
    A. Central nervous system and peripheral nervous system
    Explanation
    The correct answer is Central nervous system and peripheral nervous system. The nervous system is divided into two major divisions: the central nervous system, which includes the brain and spinal cord, and the peripheral nervous system, which includes all the nerves outside of the central nervous system.

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  • 2. 

    The central nervous system is made up of which components?

    • A.

      Brain and spinal nerves

    • B.

      Brain and spinal cord

    • C.

      Cranial and spinal nerves

    • D.

      Sympathetic and parasympathetic systems

    Correct Answer
    B. Brain and spinal cord
    Explanation
    The central nervous system is made up of the brain and spinal cord. The brain is responsible for processing information, controlling body functions, and coordinating movement. The spinal cord is a long bundle of nerves that extends from the base of the brain down the back. It serves as a pathway for transmitting signals between the brain and the rest of the body. Together, the brain and spinal cord form the central nervous system, which plays a crucial role in regulating and coordinating bodily functions.

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  • 3. 

    A sensory nerve is resposible for sending messages:

    • A.

      From the brain and spinal cord

    • B.

      To and from the brain and spinal cord

    • C.

      To the brain and spinal cord

    • D.

      None of the above

    Correct Answer
    C. To the brain and spinal cord
    Explanation
    A sensory nerve is responsible for sending messages to the brain and spinal cord. Sensory nerves are a type of nerve that carries sensory information from different parts of the body to the central nervous system, which includes the brain and spinal cord. These messages can include information about touch, temperature, pain, and other sensory stimuli. Therefore, the correct answer is "To the brain and spinal cord."

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  • 4. 

    The region of the brain concerned with the coordination of skeletal muscle is called:

    • A.

      Pons

    • B.

      Midbrain

    • C.

      Cerebrum

    • D.

      Cerebellum

    Correct Answer
    D. Cerebellum
    Explanation
    The cerebellum is the region of the brain that is responsible for coordinating skeletal muscle movements. It receives information from the sensory systems, the spinal cord, and other parts of the brain and integrates this information to fine-tune motor control. The cerebellum plays a crucial role in maintaining balance, posture, and coordinating smooth, precise movements. It does not initiate movements but rather helps to refine and coordinate them.

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  • 5. 

    The connective tissue membrane which covers the central nervous system is the : 

    • A.

      Cerebrospinal membranes

    • B.

      Meninges

    • C.

      Myeline sheaths

    • D.

      Synapses

    Correct Answer
    B. Meninges
    Explanation
    The correct answer is meninges. The meninges are a connective tissue membrane that covers and protects the central nervous system, including the brain and spinal cord. They consist of three layers: the dura mater, arachnoid mater, and pia mater. The meninges provide support and cushioning to the central nervous system, helping to protect it from injury or trauma. They also help to regulate the flow of cerebrospinal fluid, which surrounds and nourishes the brain and spinal cord.

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  • 6. 

    The junction where nerve impulses are transmitted from one neurone to another is the:

    • A.

      Neurotransmitter

    • B.

      Dendrite

    • C.

      Axon

    • D.

      Synapse

    Correct Answer
    D. Synapse
    Explanation
    The synapse is the junction where nerve impulses are transmitted from one neuron to another. It is the point of communication between neurons, where the electrical signal in the presynaptic neuron is converted into a chemical signal in the form of neurotransmitters. These neurotransmitters then cross the synapse and bind to receptors on the postsynaptic neuron, allowing the transmission of the nerve impulse to continue.

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  • 7. 

    The part of the brain which contains the vital control centres for the heart, lungs and intestines is the :

    • A.

      Hypothalamus

    • B.

      Mid brain

    • C.

      Medulla oblongata

    • D.

      Cerebellum

    Correct Answer
    C. Medulla oblongata
    Explanation
    The medulla oblongata is the correct answer because it is a part of the brainstem that controls vital functions such as heart rate, blood pressure, breathing, and digestion. It contains the control centers for these essential processes, making it crucial for maintaining homeostasis in the body. The hypothalamus is involved in regulating body temperature, hunger, and thirst, but it does not directly control the vital functions mentioned. The midbrain is responsible for relaying sensory information and coordinating motor movements, while the cerebellum is involved in motor coordination and balance.

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  • 8. 

    The effects of the parasympathetic nervous system are:

    • A.

      Resting heart rate

    • B.

      Increased gastrointestinal activity

    • C.

      Pupil constriction

    • D.

      All of the above

    Correct Answer
    D. All of the above
    Explanation
    The parasympathetic nervous system is responsible for the body's rest and digest response. It slows down the heart rate, allowing the body to relax and recover. It also increases gastrointestinal activity, promoting digestion and absorption of nutrients. Pupil constriction is another effect of the parasympathetic system, which helps in focusing on nearby objects. Therefore, all of the given options are correct effects of the parasympathetic nervous system.

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  • 9. 

    How many pairs of spinal nerves do we have?

    • A.

      31

    • B.

      12

    • C.

      33

    • D.

      30

    Correct Answer
    A. 31
    Explanation
    We have 31 pairs of spinal nerves. The spinal nerves are part of the peripheral nervous system and they emerge from the spinal cord. They are responsible for transmitting sensory and motor information between the spinal cord and the rest of the body. Each spinal nerve has a dorsal root and a ventral root, which merge to form a single nerve that exits the spinal column through the intervertebral foramen. There are 31 pairs of spinal nerves, with each pair corresponding to a specific region of the spinal cord.

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  • 10. 

    What is another name for a sensory neurone?

    • A.

      Afferent

    • B.

      Efferent

    Correct Answer
    A. Afferent
    Explanation
    A sensory neuron is responsible for transmitting sensory information from the peripheral nervous system to the central nervous system. The term "afferent" refers to the direction of this transmission, which is towards the central nervous system. Therefore, a sensory neuron is commonly known as an afferent neuron.

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  • 11. 

    Which part of the brain relays all sensory messages apart from olfaction (smell)?

    • A.

      Hypothalamus

    • B.

      Pineal gland

    • C.

      Thalamus

    • D.

      Pituitary gland

    Correct Answer
    C. Thalamus
    Explanation
    The thalamus is responsible for relaying sensory messages from various parts of the body, except for the sense of smell. It acts as a relay station, receiving information from sensory organs and transmitting it to the appropriate areas of the brain for processing. This allows us to perceive and respond to different sensory stimuli such as touch, taste, hearing, and vision. The hypothalamus, pineal gland, and pituitary gland have different functions and are not directly involved in relaying sensory messages.

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  • 12. 

    The brain stem is composed of 3 parts : midbrain, pons and medulla oblongata ?

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The brain stem is indeed composed of three parts: the midbrain, pons, and medulla oblongata. These three structures are located at the base of the brain and are responsible for regulating many essential functions such as breathing, heart rate, and consciousness. Each part of the brain stem has its own specific functions and connections to other parts of the brain, making it a crucial component of the central nervous system.

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  • 13. 

    A reflex action does not require the brain?

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    A reflex action does not require the brain because it is an involuntary response that occurs automatically in response to a stimulus. The reflex arc allows the sensory information to be processed at the spinal cord level, bypassing the brain. This allows for a quicker response time as the signal does not need to travel all the way to the brain for processing. The brain may become aware of the reflex action after it has occurred, but it is not directly involved in the execution of the reflex.

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  • 14. 

    What is the name of the fluid which carries nutrients to nerve tissues, drains waste away anPlad protects the CNS by acting as a shock absorber?

    • A.

      Cerebro-spinal fluid

    • B.

      Meninges

    • C.

      Plama

    • D.

      Lymph

    Correct Answer
    A. Cerebro-spinal fluid
    Explanation
    Cerebro-spinal fluid is the correct answer because it is the fluid that carries nutrients to nerve tissues, drains waste away, and protects the CNS by acting as a shock absorber.

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  • 15. 

    Which part of the brain controls many homeostatic functions by governing the pituitary gland?

    • A.

      Thalamus

    • B.

      Cerebrum

    • C.

      Hypothalamus

    • D.

      Cerebellum

    Correct Answer
    C. Hypothalamus
    Explanation
    The hypothalamus is a part of the brain that controls many homeostatic functions by governing the pituitary gland. It plays a crucial role in regulating body temperature, hunger, thirst, sleep, and hormone production. The hypothalamus receives signals from various parts of the body and sends out appropriate responses through the pituitary gland, which acts as the master gland of the endocrine system. This coordination helps maintain a stable internal environment in the body, ensuring that essential bodily functions are properly regulated.

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  • 16. 

    Which part of the autonomic nervous system prepares the body for expending energy and dealing with emergency situations?

    • A.

      Sympathetic

    • B.

      Parasympathetic

    Correct Answer
    A. Sympathetic
    Explanation
    The sympathetic division of the autonomic nervous system is responsible for preparing the body for expending energy and dealing with emergency situations. It activates the "fight or flight" response, increasing heart rate, dilating blood vessels, and releasing stress hormones such as adrenaline. This response helps the body to respond quickly and effectively to perceived threats or stressful situations. In contrast, the parasympathetic division of the autonomic nervous system is responsible for conserving energy and promoting relaxation.

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  • 17. 

    Which pathology is a disorder of the 7th cranial nerve and results in paralysis on one side of the face?

    • A.

      Epilepsy

    • B.

      Cluster headache

    • C.

      Bells' palsy

    • D.

      Migraine

    Correct Answer
    C. Bells' palsy
    Explanation
    Bells' palsy is a disorder of the 7th cranial nerve, also known as the facial nerve, which causes paralysis on one side of the face. This condition is characterized by sudden weakness or paralysis of the muscles on one side of the face, leading to drooping of the eyelid, drooping of the mouth, and difficulty in facial expressions. It is believed to be caused by inflammation or viral infection of the facial nerve, leading to the paralysis.

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  • 18. 

    What is another term for a motor neurone?

    • A.

      Afferent

    • B.

      Efferent

    Correct Answer
    B. Efferent
    Explanation
    Another term for a motor neurone is efferent. Motor neurones are responsible for carrying signals from the central nervous system to muscles and glands, causing them to contract or secrete. Efferent is the correct term used to describe the direction of the signal transmission, which is away from the central nervous system. Afferent, on the other hand, refers to the transmission of signals towards the central nervous system.

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  • 19. 

    Which part of a neurone recieves and transmits nerve impulses towards the cell body?

    • A.

      Dendrite

    • B.

      Axon

    • C.

      Myellin sheath

    • D.

      Neurilemma

    Correct Answer
    A. Dendrite
    Explanation
    Dendrites are the part of a neuron that receives and transmits nerve impulses towards the cell body. They are branch-like structures that extend from the cell body and are covered in synapses, allowing them to receive signals from other neurons. The dendrites then transmit these signals towards the cell body, where they are integrated and processed before being passed on to the axon for further transmission.

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  • 20. 

    Which part of the brain is concerned with all forms of conscious activity?

    • A.

      Hypothalamus

    • B.

      Cerebrum

    • C.

      Cerebellum

    • D.

      Pituitary gland

    Correct Answer
    B. Cerebrum
    Explanation
    The cerebrum is the correct answer because it is the largest part of the brain and is responsible for all forms of conscious activity. It controls voluntary movements, sensory perception, memory, language, and emotions. It is divided into two hemispheres, each with four lobes that specialize in different functions. The cerebrum plays a crucial role in higher cognitive functions such as problem-solving, decision-making, and creativity.

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