Chapter 38 Nervous System Quiz

56 Questions | Total Attempts: 141

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Chapter 38 Nervous System Quiz

The nervous system is a combination and a complex network of cells and nerves, which act as messengers to and from the brain and spinal cord with the rest of the body. This quiz is all about this system.


Questions and Answers
  • 1. 
    A neuron's nucleus is located in its _____.
    • A. 

      Cell body

    • B. 

      Axon

    • C. 

      Myelin sheath

    • D. 

      Dendrite

    • E. 

      Synaptic terminals

  • 2. 
    A nerve impulse moves toward a neuron's cell body along _____.
    • A. 

      Dendrites

    • B. 

      Synaptic terminals

    • C. 

      Oligodendrocytes

    • D. 

      Axons

    • E. 

      Nodes of Ranvier

  • 3. 
    A nerve impulse moves away from a neuron's cell body along _____.
    • A. 

      Dendrites

    • B. 

      Nissl bodies

    • C. 

      Synapses

    • D. 

      Axons

    • E. 

      Glia

  • 4. 
    An impulse relayed along a myelinated axon "jumps" from _____ to _____.
    • A. 

      Oligodendrocyte ... Schwann cell

    • B. 

      Node of Ranvier ... Schwann cell

    • C. 

      Node of Ranvier ... node of Ranvier

    • D. 

      Schwann cell ... Schwann cell

    • E. 

      Schwann cell ... node of Ranvier

  • 5. 
    Axons insulated by a(n) _____ are able to conduct impulses faster that those not so insulated.
    • A. 

      Node of Ranvier

    • B. 

      Synaptic terminal

    • C. 

      Myelin sheath

    • D. 

      Layer of asbestos

    • E. 

      Astrocytes

  • 6. 
    What type of cell makes up the myelin sheath of a motor neuron?
    • A. 

      Astrocytes

    • B. 

      Microglial cells

    • C. 

      Ranvier cells

    • D. 

      Ependymal cells

    • E. 

      Schwann cells

  • 7. 
    What part of a neuron relays signals from one neuron to another neuron or to an effector?
    • A. 

      Dendrite

    • B. 

      Axon hillock

    • C. 

      Synaptic terminal

    • D. 

      Axon

    • E. 

      Node of Ranvier

  • 8. 
    Which of these causes the release of neurotransmitter molecules?
    • A. 

      The receipt of a signal from the postsynaptic neuron

    • B. 

      The opening of voltage-regulated calcium channels and the diffusion of calcium ions out of the neuron

    • C. 

      An action potential reaching the end of the cell body

    • D. 

      An action potential reaching the end of the axon

    • E. 

      An action potential reaching the end of the dendrite

  • 9. 
    The space between an axon of one neuron and the dendrite of another neuron is called a(n) _____.
    • A. 

      Synaptic cleft

    • B. 

      Node of Ranvier

    • C. 

      Internodes

    • D. 

      Synapse

    • E. 

      Synaptic terminal

  • 10. 
    Neurons store neurotransmitter molecules in vesicles located within _____.
    • A. 

      The cell body

    • B. 

      Myelin

    • C. 

      The synaptic cleft

    • D. 

      Dendrites

    • E. 

      Synaptic terminals

  • 11. 
    A neuron has a resting potential of about _____ millivolts.
    • A. 

      +50

    • B. 

      +35

    • C. 

      –55

    • D. 

      –70

    • E. 

      –80

  • 12. 
    An action potential moves along a(n) _____.
    • A. 

      Myelin sheath

    • B. 

      Axon

    • C. 

      Dendrite

    • D. 

      Synapse

    • E. 

      Cell body

  • 13. 
    At rest, which of these plays a role in establishing the charge differential across a neuron's plasma membrane?
    • A. 

      The sodium-potassium pump moving sodium ions into the neuron and potassium ions out of the neuron

    • B. 

      The diffusion of sodium ions out of the neuron

    • C. 

      The diffusion of potassium ions into the neuron

    • D. 

      The sodium-potassium pump moving sodium ions out of the neuron and potassium ions into the neuron

    • E. 

      The diffusion of sodium ions into the neuron

  • 14. 
    The transmission of a nerve impulse first triggers the _____.
    • A. 

      Action of the sodium-potassium pump

    • B. 

      Opening of voltage-gated sodium channels and the diffusion of sodium ions into the neuron

    • C. 

      Opening of voltage-gated sodium channels and the diffusion of sodium ions out of the neuron

    • D. 

      Opening of voltage-gated potassium channels and the diffusion of potassium ions out of the neuron

    • E. 

      Opening of voltage-gated potassium channels and the diffusion of potassium ions into the neuron

  • 15. 
    A stimulus has opened the voltage-gated sodium channels in an area of a neuron's plasma membrane. As a result, _____ rushes into the neuron and diffuses to adjacent areas; this in turn results in the _____ in the adjacent areas.
    • A. 

      Potassium ... opening of voltage-gated potassium channels

    • B. 

      Sodium ... opening of voltage-gated potassium channels

    • C. 

      Sodium ... opening of voltage-gated sodium channels

    • D. 

      Sodium ... closing of voltage-gated sodium channels

    • E. 

      Potassium ... opening of voltage-gated sodium channels

  • 16. 
    What type of nervous system is exhibited by the flatworm?
    • A. 

      No nervous system

    • B. 

      Diffuse nervous system

    • C. 

      Bilateral nervous system

    • D. 

      Peripheral nervous system

    • E. 

      Centralized nervous system

  • 17. 
    The stronger the stimulus, the more powerful the action potential. True or False?
    • A. 

      True

    • B. 

      False

  • 18. 
    Addictive drugs that make people feel good, such as cocaine, ecstasy, and methamphetamine, affect the parts of the brain that use which neurotransmitter(s)?
    • A. 

      Serotonin and GABA

    • B. 

      Nitric oxide

    • C. 

      Acetylcholine

    • D. 

      GABA

    • E. 

      Serotonin and dopamine

  • 19. 
    If I step on a shard of glass while playing volleyball barefoot, which path will the reflex to pull my foot up follow?
    • A. 

      Motor nerve - sensory nerve - spinal cord - brain

    • B. 

      Sensory nerve - spinal cord - brain - spinal cord - motor nerve - effector

    • C. 

      Sensory nerve - motor nerve - spinal cord - brain

    • D. 

      Motor nerve - spinal cord - brain - spinal cord - sensory nerve - effector

    • E. 

      Sensory nerve - spinal cord - motor nerve - effector

  • 20. 
    Which of the following is part of the peripheral nervous system?
    • A. 

      Medulla

    • B. 

      Autonomic nervous system

    • C. 

      Thalamus

    • D. 

      Brain

    • E. 

      Spinal cord

  • 21. 
    The autonomic nervous system consists of two parts: the sympathetic and parasympathetic divisions. The sympathetic division is responsible for which type of response?
    • A. 

      Involuntary responses to extreme danger or stress

    • B. 

      "Rest and digest" responses

    • C. 

      Constriction of the air passages in the respiratory system

    • D. 

      Slowing of the heart rate

  • 22. 
    Most brain cells are
    • A. 

      Motor neurons.

    • B. 

      Sensory neurons.

    • C. 

      Interneurons.

    • D. 

      Saltatory neurons.

    • E. 

      Parasympathetic neurons.

  • 23. 
    Which of these parts of the brain controls breathing and heart rate?
    • A. 

      Hypothalamus

    • B. 

      Cerebellum

    • C. 

      Medulla

    • D. 

      Cerebrum

    • E. 

      Thalamus

  • 24. 
    Memory, sensory processing, motor responses, creativity, and higher intellectual functions are carried out by the
    • A. 

      Cerebrum.

    • B. 

      Amygdala.

    • C. 

      Medulla.

    • D. 

      Cerebellum.

    • E. 

      Hypothalamus.

  • 25. 
    It is possible that brain damage from a stroke or other injury could leave a person with the ability to comprehend written language but not spoken language (assume the person's hearing is fine). Which statement best explains this?
    • A. 

      Different aspects of language comprehension are controlled by different parts of the brain.

    • B. 

      All aspects of language are processed by the same cell.

    • C. 

      All aspects of language are processed in the same part of the brain.

    • D. 

      Different aspects of language comprehension are controlled by different cells.

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