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Gross anatomy > cranial nerves > Flashcards

cranial nerves Flashcards

1
Q

what is cranial nerve 1?

A

olfactory nerve

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2
Q

Function of the olfactory n?

A

lateral olfactory stria determine type/intensity of smell and medial olfactory stria determine emotion

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3
Q

What is cranial nerve 2?

A

Optic nerve

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4
Q

function of the optic nerve?

A

sensory information about vission

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5
Q

what is cranial nerve 3?

A

occulomotor nerve

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6
Q

function of the occulomotor nerve?

A

movement of the eye, pupil constriction, and focus

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7
Q

Muscles supplied by the oculomotor nerves?

A

superior division–> superior rectus, levator papilpebrae superioris
Inferior division–> medial rectus, inferior rectus, inferior oblique
iris and cilary muscle

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8
Q

what is cranial nerve 4?

A

Trochlear

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9
Q

Function of the trochlear nerve?

A

innervates superior oblique m

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10
Q

what is cranial nerve 5?

A

trigeminal

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11
Q

function of the trigeminal nerve?

A

sensation to anterior head and motor for mastication

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12
Q

name the three divisions of the trigeminal nerve?

A

ophthalamic, maxillary, mandibullary

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13
Q

main functions of the ophthalamic division?

A

sensory to forehead, sensation to bridge of nose

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14
Q

main function of the maxillary division?

A

sensory from teeth and palate

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15
Q

main function of the mandibullary division?

A

sensory from lower teeth and jaw, temporal, anterior tongue

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16
Q

motor innervation of the trigeminal n.

A

supplies mylohyoid and anterior digastric

17
Q

what is the 6th cranial nerve?

A

aducens

18
Q

function of the aducens nerve?

A

abduction of the eye (superior lateral rectus)

19
Q

What is the 7th cranial nerve?

A

Facial nerve

20
Q

function of the fascial nerve?

A

muscles of fascial expression and chewing, sensation to external acoustic, taste, salivary gland (parasymp)

21
Q

list the 6 branches of the fascial motor roots?

A

posterior auricular, temproal, zygomatic, bucal, mandibular, cervical

22
Q

what is the 8th cranial nerve?

A

vestibulocochlear

23
Q

function of the vestibulocochlear nerve?

A

proprioception and hearing

24
Q

how many vestibular nuclei? cochlear?

A
  1. 2
25
Q

How are different pitches differentiated?

A

high frequency sound is heard at base, low frequency sound is heard at apex

26
Q

How is intensity of sound interpreted?

A

degree of vibration

27
Q

how does proprioception of vestibulocochlear nerve work?

A

movement of head. hair moves, crystals bends, depolarizes nerve, sensation

28
Q

function of the glossopharyngeal nerve?

A

posterior tongue and pharynx

29
Q

function of the vagus nerve?

A

sensory taste, slow HR, increase Blood flow

30
Q

Function of the accesory nerve?

A

traps, sternocleidmastoid

31
Q

Function of the hypoglossal nerve?

A

inferior base of tongue muscles

Gross anatomy (19 decks)

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