Injury to cervical vertebrae C3-C4 is particularly problematic because ___________.
A) several ganglia are near this region that serve the heart
B) part of the brain stem is located here
C) the greater auricular nerve that serve the parotid gland receive there fibers from here
D) the phrenic nerve that serves the diaphragm receives its fibers from here

Question

Quizplus · Accepted Answer

The phrenic nerve, which serves the diaphragm, receives its fibers from the C3-C4 region of the cervical vertebrae. Injury to this area can result in respiratory failure.

Injury to Cervical Vertebrae C3-C4 Is Particularly Problematic Because ___________