function of each cranial nerve Flashcards Preview

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Flashcards in function of each cranial nerve Deck (12):
1

olefactory nerve

impulses from olefactory receptor neurones giving information on smell.

2

optic nerve

impulses from the retina

3

oculomotor

innervates: ipsilateral inferior rectus muscle
ipsilateral inferior oblique muscle
ipsilateral medial rectus muscle
contralateral superior rectus muscle

4

Trochlear

superior oblique muscle of the contralateral orbit

5

Trigeminal

sensations to the face, musocus membranes and other structures of the head
motor nerve for the muscles of mastication

6

abducens

lateral rectus of ipsilateral orbit

7

facial nerve

muscles of facial expression: posterior belly of diagastric, stylohyoid, stepedius.
icrimal, submandibular and sublingual glands.
taste sensation from anterior 2/3 of the tongue, hard and soft palates.

8

vestibulocochlear

sesnory info from vestibulae and the cochlea

9

glossopharangeal

stylopharyngeus muscle. paraS innervation of smooth muscle and glands of the pharynx, larynx and viscera of thorax and abdomen.
sensory infor from carotid sinus and body
external ear, tympanic membrane, upper pharynx and posterior 1/3 of tongue

10

vagus

pharynx and larynx, palatoglossus. stretch receptors of aortic arch and chemoreceptors of aortic bodies.
loads of stuff

11

accessory nerve

innervates muscles of oharynx and larynx, trapezius and sternocleidomastoid

12

hypoglossal

all intrinsic and most of extrinsic muscles of the tongue:
genioglossus, styloglossus and hypoglossal.