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Anat-Cranial Nerves

QuestionAnswer
3 functions of cranial nerves sensory, motor, parasympathetic
sensory function special (from specialized sense organs [eye, nose, ear, tongue]) or general (from everything else [touch, pain, pressure, temperature]) sensory information input
motor function somatic motor signals to skeletal muscles
parasympathetic function regulation of glands (sweat, saliva, tears), smooth muscles, and cardiac muscles
proprioception positional information of body parts that goes to the cerebellum to coordinate movement
direction of cranial nerves numbered from anterior to posterior
other name for vestibulocochlear nerve auditory nerve
other name for accessory nerve spinal accessory nerve (a portion or all of it may be evolutionarily derived from a spinal nerve
cranial nerves (in correct order) olfactory, optic, oculomotor, trochlear, abducens, facial, vestibulocochlear, glossopharyngeal, vagus, accessory, hypoglossal
mnemonic aid #1 on old olympus towering tops a famous vocal german viewed some hops
mnemonic aid #2 oh, once one takes the anatomy final, very good vacations are heavenly!
mnemonic aid #3 old opie occasionally tries trigonometry and feels very gloomy, vague, and hypoactive
mnemonic aid for sensory and/or motor functions of cranial nerves some say marry money but my brother says big business matters more
olfactory (I) nerve function sensory: smell, goes directly to the cerebrum, not through the thalamus
optic (II) nerve function sensory: sight (goes to eyeball)
oculomotor (III) nerve function motor: controls 4 of 6 eye muscles that move the eyeball in the orbit
oculomotor (III) location comes off the anterior side of the pons
trochlear (IV) nerve function motor: controls 1 of the 6 eye muscles
trochlear (IV) appearance thin and thread-like, hard to see
trigeminal (V) nerve function sensory: carries sensory info from the face, nasal cavity, cheeks, lips, oral cavity, skin of the mandible, and surface of the eye
abducens (V!) nerve function motor: goes to the last of the 6 eye muscles
abducens (VI) location between the pons and the medulla
facial (VII) nerve function sensory: carries taste info from the anterior 2/3 of the tongue
vestibulocochlear (VIII) nerve function sensory: carries info on hearing and balance
glossopharyngeal (IX) nerve function (1) sensory: carries info from the posterior 1/3 of tongue (taste), back of mouth, tonsils, and middle ear (where the ossicles are-- monitor the pressure here)
glossopharyngeal (IX) nerve function (2) motor: controls 1 muscle of the pharynx for swallowing
vagus (X) nerve function (1) sensory: carries info from the root of the tongue (taste), back of mouth, pharynx (throat), larynx (voicebox), thoracic, and abdominal organs
vagus (X) nerve function (2) motor: innervates muscles of the larynx and 1 muscle of the tongue
vagus (X) nerve location comes off the side of the medulla
accessory (XI) nerve function motor: goes to the sternocleidomastoid and trapezius
hypoglossal (XII) nerve function motor: controls the tongue and throat muscles (not exactly in the proper numeric sequence)
Created by: Jean-O