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Student Center Anatomy and Physiology, Second Edition
The unity of form and function
Kenneth S. Saladin
Student Center

Chapter 15: The Peripheral Nervous System and Reflexes

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 Recall Test

  1. Outside the CNS, somas are clustered in swellings called .
  2. Distal to the intervertebral foramen, a spinal nerve branches into a dorsal and ventral .
  3. The nerves arise from the cervical plexus and innervate the diaphragm.
  4. Most parasympathetic preganglionic fibers are found in the nerve.
  5. Modified muscle fibers serving primarily to detect stretch are called .
  6. The sciatic nerve is a composite of two nerves, the and .
  7. The adrenal medulla consists of modified postganglionic neurons of the nervous system.
  8. Nicotinic and muscarinic receptors both bind the neurotransmitter .
  9. Adrenergic receptors classified as a 2, ß1, and ß2 act by changing the level of in the target cell.
  10. Sympathetic fibers to blood vessels maintain a background rate of firing called and this causes a state of partial vasoconstriction called .
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