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BIO 140 Human Biology I - Questions and Solutions

Basic Structure and Function of the Nervous System - Solutions

Review Questions

1. Which of the following cavities contains a component of the central nervous system?

  1. abdominal
  2. pelvic
  3. cranial
  4. thoracic

2. Which structure predominates in the white matter of the brain?

  1. myelinated axons
  2. neuronal cell bodies
  3. ganglia of the parasympathetic nerves
  4. bundles of dendrites from the enteric nervous system

3. Which part of a neuron transmits an electrical signal to a target cell?

  1. dendrites
  2. soma
  3. cell body
  4. axon

4. Which term describes a bundle of axons in the peripheral nervous system?

  1. nucleus
  2. ganglion
  3. tract
  4. nerve

5. Which functional division of the nervous system would be responsible for the physiological changes seen during exercise (e.g., increased heart rate and sweating)?

  1. somatic
  2. autonomic
  3. enteric
  4. central

 

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Critical Thinking Questions

1. What responses are generated by the nervous system when you run on a treadmill? Include an example of each type of tissue that is under nervous system control.

Solution: Running on a treadmill involves contraction of the skeletal muscles in the legs, increase in contraction of the cardiac muscle of the heart, and the production and secretion of sweat in the skin to stay cool.

2. When eating food, what anatomical and functional divisions of the nervous system are involved in the perceptual experience?

Solution: The sensation of taste associated with eating is sensed by nerves in the periphery that are involved in sensory and somatic functions.

 

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OpenStax, Basic Structure and Function of the Nervous System. OpenStax CNX. Jun 28, 2013 http://cnx.org/contents/c84b36a7-c47f-458f-a5f3-47651fc91050@6. © Jun 28, 2013 OpenStax. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License 3.0 license.