You're going to help me study! Understood!
I've got a big test today on three HUGE CHAPTERS in my Anatomy and Physiology class! Skeletel, Muscular and Nervous Systems!
I'm just typing this out to help me remember.
The 12 Cranial Nerves...
1. Olfactory - Purely Sensory; carries impulses for the sense of smell
2. Optic - Purely Sensory; carries impulses for vision
3. Oculomotor - Supplies motor fibers to four of the six muscles that direct the eyeball; to the eyelid; and to the internal eye muscles controlling lense shape and pupil size.
4. Trochlear - Supplies motor fibers for one external eye muscle (Superior oblique)
5. Trigeminal - Conducts sensory impulses from the skin of the face and mucosa of the nose and mouth; also contains motor fibers that activate the chewing muscle(Masseter)
6. Abducens - Supplies motor fibers to the lateral rectus muscle, which rolls the eye laterally
7. Facial - Activates the muscles of the facial expression and the lacrimal and salivary glands; carries sensory impulses from the taste buds of anterior tongue
8. Vestibulocochlear - Purely Sensory; vestibular branch transmits impulses for the sense of ballance and cochlear branch transmits impulses for the sense of hearing
9. Glossopharyngeal - Supplies motor fibers to the pharynx (Throat) that promotes swallowing and saliva production; carries sensory impulses from the taste buds of the posterior tongue and from pressure receptors of the carotid artery.
10. Vagus - Fibers carry sensory impulses from and motor impulses to the pharynx, larynx and the abdominal and thoracic viscera; most motor fibers are parasymphathetic fibers that promote digestive activity and help regulate heart activity.
11. Accessory - Mostly motor fibers that activate the sternocleidomastoid and trapezius muscles.
12. Hypoglossal - Motor fibers control tongue movements; sensory fibers carry impulses from the tongue.
Reply With Quote
Originally Posted by tink0797
