Which of the Following is Least Descriptive of the Phrenic

Question

Which of the following is least descriptive of the phrenic nerve?
A) Primarily afferent fibers
B) Spinal nerve
C) Diaphragm and ventilation
D) Cervical plexus

Accepted Answer

The phrenic nerve is primarily comprised of efferent fibers that control the diaphragm muscle and facilitate ventilation.