Transmits hearing and balance impulses from the inner ear to the brain.
Glossopharyngeal Nerve (IX).
(2) Transmits taste impulses and general sensations from the tongue and
pharynx (sensory function) to the brain.
(3) Contracts the swallowing muscles in the pharynx and stimulates
secretions of the salivary glands.
j. Vagus Nerve (X).
(2) Transmits sensory impulses from the viscera (heart, smooth muscles,
abdominal organs), pharynx, and larynx to the brain.
(3) Secrets digestive juices, contracts the swallowing muscles of the
pharynx and larynx, slows down the heart rate, and modifies muscular contraction of
k. Spinal Accessory Nerve (XI).
Transmits sensory impulses from the pharynx and larynx to the brain.
Contracts the muscles of the pharynx, larynx, and the neck.
Hypoglossal Nerve (XII).
Contracts the muscles of the tongue.
THE SPINAL NERVES
a. There are 31 pairs of spinal nerves, identified as follows:
Cervical nerves (8) (C-1 through C-8).