Arose from midbrain, relay at ciliary ganglion and supplies the iris and muscles of the eye.
Optic Nerve (Cr. N. II)
When taste buds are stimulated they can produce 4 different sensations (sweet, salty, bitter, sour). These nervous impulses are carried to the brain by the facial nerve (cranial nerve VII)from the anterior 2/3 of the tongue and by the glossopharyngeal (cranial nerve IX) from the posterior 1/3 of the tongue.
Cranial nerve #2 - optic nerve - special sensory for vision Cranial nerve #3 - occulomotor nerve - motor for extraoccular muscles & parasympathetic to ciliary ganglion Cranial nerve #4 - trochlear nerve - motor for extraoccular muscle (superior oblique) Cranial nerve #6 - abduscens nerve - motor for extraoccular muscle (lateral rectus)
3, 4, and 6 Oculomotor (3) Trochlear (4) Abducens (6)
Facial nerve Glossopharyngeal nerve Vagus nerve
what does ninth cranial nerve control? glossopharyngeal nerve is a mixed nerve, it has sensory and motor part. the sensory is at the poserior 1/3 of the tongue. It also is part of the pharyngeal plexus. (9,10,11) The motor part of the nerve ONLY supply the stylopharyngeus muscle!
If the light is shining directly into one eye, then the pupil in that eye will constrict (a direct response), but so will the pupil in the non-illuminated eye (a consensual response). This reflex involves two cranial nerves: the optic nerve, which senses the light, and the oculomotor nerve, which constricts both pupils.
The parasympathetic nerve is found in cranial nerves III, VII, IX, and X. Each of these cranial nerves carries parasympathetic fibers that regulate various involuntary functions in the body.
Brances of the Facial (VII), Glossopharyngeal (IX), and Vagus (X) cranial nerves carry information about taste
Eye movement is controlled by cranial nerves III, IV, and VI (Oculomotor, Trohlear, and Abducens, respectively). CN III innervates most of the muscles of the eye and is responsible for most eye movements.
The levator palpebrae muscle is primarily responsible for opening the eyelids, it is innervated by cranial nerve 3 (occulomotor nerve). Raising the eyebrows, which will also open the eyes wider and may be what you are asking about, is done by occipitofrontalis. This muscle is innervated by cranial nerve 7 (facial nerve).
A) vagus nerve (X) B) facial nerve (VII) C) glossopharyngeal nerve (IX) D) trigeminal nerve (V) E) facial nerve (VII), vagus nerve (X), and glossopharyngeal nerve (IX) Answer is E