Nervous System MCQs

  1. Which part of the brain is responsible for regulating vital functions such as heartbeat and breathing?
    a) Cerebrum
    b) Cerebellum
    c) Medulla oblongata
    d) ThalamusAnswer: c) Medulla oblongata
  2. What is the primary function of the myelin sheath?
    a) To transmit electrical impulses
    b) To protect the neuron from damage
    c) To increase the speed of impulse transmission
    d) To store neurotransmittersAnswer: c) To increase the speed of impulse transmission
  3. Which type of neuron carries sensory information from the peripheral nervous system to the central nervous system?
    a) Motor neuron
    b) Interneuron
    c) Sensory neuron
    d) Efferent neuronAnswer: c) Sensory neuron
  4. Which part of the brain is involved in higher cognitive functions, such as reasoning, planning, and problem-solving?
    a) Limbic system
    b) Brainstem
    c) Cerebrum
    d) CerebellumAnswer: c) Cerebrum
  5. Which neurotransmitter is primarily associated with mood regulation and is often targeted by antidepressant medications?
    a) Acetylcholine
    b) Dopamine
    c) Serotonin
    d) NorepinephrineAnswer: c) Serotonin
  6. What is the name of the structure that connects the left and right hemispheres of the brain?
    a) Corpus callosum
    b) Pineal gland
    c) Thalamus
    d) HippocampusAnswer: a) Corpus callosum
  7. Which type of glial cell is responsible for forming the blood-brain barrier?
    a) Astrocyte
    b) Oligodendrocyte
    c) Microglia
    d) Schwann cellAnswer: a) Astrocyte
  8. What is the name of the fluid that surrounds the brain and spinal cord, providing cushioning and protection?
    a) Synovial fluid
    b) Cerebrospinal fluid (CSF)
    c) Lymphatic fluid
    d) Interstitial fluidAnswer: b) Cerebrospinal fluid (CSF)
  9. Which cranial nerve is responsible for the sense of smell?
    a) Optic nerve
    b) Vagus nerve
    c) Olfactory nerve
    d) Facial nerveAnswer: c) Olfactory nerve
  10. What is the primary role of the autonomic nervous system?
    a) To control voluntary movements
    b) To regulate unconscious bodily functions
    c) To process sensory information
    d) To coordinate muscle contractionsAnswer: b) To regulate unconscious bodily functions
  11. Which part of the nervous system controls the “fight or flight” response?
    a) Sympathetic nervous system
    b) Parasympathetic nervous system
    c) Somatic nervous system
    d) Enteric nervous systemAnswer: a) Sympathetic nervous system
  12. Which structure in the brain is primarily involved in coordinating voluntary muscle movements and maintaining balance?
    a) Cerebellum
    b) Hypothalamus
    c) Hippocampus
    d) PonsAnswer: a) Cerebellum
  13. What is the primary function of the somatic nervous system?
    a) To control involuntary bodily functions
    b) To regulate emotional responses
    c) To control voluntary movements of skeletal muscles
    d) To process sensory information from internal organsAnswer: c) To control voluntary movements of skeletal muscles
  14. Which of the following structures is involved in memory formation and spatial navigation?
    a) Amygdala
    b) Hippocampus
    c) Thalamus
    d) HypothalamusAnswer: b) Hippocampus
  15. Which part of the nervous system is responsible for relaying sensory and motor signals between the brain and the rest of the body?
    a) Spinal cord
    b) Peripheral nervous system
    c) Brainstem
    d) Corpus callosumAnswer: a) Spinal cord

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