Mixed nerve

A mixed nerve is any nerve that contains both sensory (afferent) and motor (efferent nerve fibers). All 31 pairs of spinal nerves are mixed nerves. Four of the twelve cranial nerves – V, VII, IX and X are mixed nerves.

Spinal nerves
The 31 pairs of spinal nerves are mixed.
 * 8 cervical nerves
 * 12 thoracic nerves
 * 5 lumbar nerves
 * 5 sacral nerves
 * 1 coccygeal nerve

Cranial nerves
Four of the cranial nerves are mixed nerves.


 * Trigeminal nerve (CN V)
 * Facial nerve (CN VII)
 * Glossopharyngeal nerve (CN IX)
 * Vagus nerve (CN X)