Biology Chapter: Nervous System Quiz

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Questions and Answers

Which of the following is a collection of nerve cells outside the CNS?

  • Bundle
  • Ganglion (correct)
  • Nucleus
  • Tract

Which part of the neuron carries nerve impulses away from the cell body?

  • Nucleus
  • Myelin sheath
  • Dendrites
  • Axon (correct)

What is the functional difference between a tract and a bundle of nerve fibers?

  • Bundles are located in the CNS, while tracts are located in the PNS.
  • Tracts are located in the CNS, while bundles are located in the PNS.
  • Bundles have the same origin, termination, and function, while tracts may not.
  • Tracts have the same origin, termination, and function, while bundles may not. (correct)

Which of the following is NOT a component of the peripheral nervous system?

<p>Brain (B)</p> Signup and view all the answers

What is the primary function of the autonomic nervous system?

<p>Control of visceral functions (D)</p> Signup and view all the answers

What is the site of communication between two neurons called?

<p>Synapse (C)</p> Signup and view all the answers

Which of the following is NOT a function of the central nervous system?

<p>Directly controlling the contraction of specific muscle fibers (D)</p> Signup and view all the answers

Which of the following is a characteristic of dendrites?

<p>Usually multiple, short processes (C)</p> Signup and view all the answers

Which of the following is a band of nerve fibers connecting corresponding parts of the brain or spinal cord?

<p>Commissure (D)</p> Signup and view all the answers

Which of the following is NOT true about the sympathetic nervous system?

<p>It promotes digestion and relaxation (D)</p> Signup and view all the answers

Flashcards

Central Nervous System (CNS)

The CNS consists of the brain and spinal cord, integrating sensory information and directing motor commands.

Peripheral Nervous System (PNS)

The PNS comprises cranial and spinal nerves that transmit sensory information to the CNS and carry motor commands away.

Neuron

The basic functional unit of the nervous system, responsible for carrying nerve impulses.

Axon

A long process of a neuron that carries impulses away from the cell body.

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Dendrites

Short, usually multiple processes of a neuron that carry impulses towards the cell body.

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Nucleus (in CNS)

A collection of nerve cells within the central nervous system.

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Ganglion

A collection of nerve cells located outside the central nervous system.

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Tract

A collection of nerve fibers with the same origin, termination, and function within the CNS.

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Bundle

A collection of nerve fibers that may not share the same origin, termination, or function.

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Synapse

The junction where the axon of one neuron connects with the dendrites or cell body of another, transmitting impulses.

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