In some people, there's also dryness of the affected eye or mouth because the facial nerve innervates the lacrimal, submandibular, and sublingual glands.
It can then travel back up through the sensory nerve, anterogradely to the skin and cause an infection in the innervated dermatome - that's called herpes zoster or shingles.
In a big power-generating muscle like your rectus femoris in your quad, each of a thousand or so motor neurons may synapse with, and innervate, a thousand muscle fibers.
Just below that is the trigeminal nerve, the largest of the cranial nerves, which branches into three main strands — hence the 'tri' — and innervates the face and jaw muscles.
The facial nerve also innervates the sublingual and submandibular glands, which secrete saliva, as well as the lacrimal gland which produces tears, and mucous membranes of the nose, mouth, and nasopharynx.
This happens because those muscles are innervated by the recurrent branch, the median nerve, which arises from the median nerve after it passes through the carpal tunnel.
In the ear, it innervates the stapedius muscle which dampens the vibration of the stapes, a small bone that help transmit vibrations from the eardrum; this protects you from loud noises.
Finally, both the ulnar and median nerves innervate the lumbricals, which are 4 muscles that extend the fingers at the interphalangeal joints, and keep them flexed at the metacarpal phalangeal joints.
Surgeons are unable to directly connect the heart to the recipient's nervous system, and it can take years for the body to fully innervate the new organ.
The vagus nerve receives visceral sensory information from the thorax and abdomen, and the accessory nerve is responsible for innervating the sternocleidomastoid and trapezius muscles, neither of which is exclusively in the head.
This means that the muscles innervated by these lower motor neurons, like those in the arms, will not receive any neural input at all, so they go limp and decrease in tone, which is called flaccid paralysis.
This compression typically causes pain, numbness and tingling in the thumb, index finger, middle finger, and thumb side of the ring finger, which are the areas of skin innervated by the median nerve.