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Home Q & A Board Biology-Related Homework Help Medicine Nursing and Clinical
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tiffanygaebel tiffanygaebel
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6 years ago
A nursing student having trouble moving his head from side to side is likely experiencing a problem with which type of neurons?
 
  A)
  General visceral efferent neurons
  B)
  Preganglionic neurons
  C)
  Parasympathetic postganglionic neurons
  D)
  Pharyngeal efferent neurons
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#1
6 years ago
Ans:
D

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Pharyngeal efferent neurons innervate brachial arch skeletal muscles, muscles of mastication and facial expression, and muscles of the pharynx and larynx. They also innervate muscles responsible for moving the head. General visceral efferent neurons and preganglionic neurons (same) innervate smooth and cardiac muscle and glandular cells of the body, most of which are in the viscera. Parasympathetic postganglionic neurons have no effect in moving the head.
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