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Neuro Test 2 > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q

brainstem parts

A

medulla, pons, midbrain, cranial nerves, basic bodily functions of life are maintained here

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2
Q

midbrain

A

most superior portion

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3
Q

pons

A

middle portion

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4
Q

medulla

A

lowest portion

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5
Q

brainstem functions

A

regulating major life functions, mediating head and neck reflexes via cranial nerves, regulating alertness and wakefulness

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6
Q

medulla oblongata

A

autonomic functions; motor and sensory neurons; relay of nerve signals; coordinating body movements

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7
Q

pons

A

connects cerebral cortex with medulla; communication and coordination center between two hemispheres; helps transfer messages between brain and spinal cord

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8
Q

midbrain

A

connects hindbrain to forebrain; auditory and visual responses; motor function

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9
Q

cranial nerve placements

A

1-4 from mibrain
5-8 from pons
9-12 from medulla

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10
Q

CN I

A

olfactory - smell

origin: olfactory bulb
problems: anosmia

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11
Q

CN II

A

optic - vision

origin: thalamus
problems: visual disturbances and loss of vision

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12
Q

CN III

A

oculomotor - lateral eye movements; pupil constrictor

origin: midbrain
problems: loss of pupillary light reflex

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13
Q

CN IV

A

trochlear - moves eyes up and down

origin: midbrain
problems: diplopia, nystagmus and difficulty with eye movements

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14
Q

CN V

A

trigeminal - sensation for face, mouth and anterior 2/3 of tongue; mastication muscles

origin: pons
problems: loss of sensation, difficulty chewing or abnormal jaw-jerk reflex

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15
Q

CN VI

A

abducens - rotates eyes out

origin: pons
problems: eye rotates in or nystagmus

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16
Q

CN VII

A

facial - muscles of face, ear sensation, taste on anterior tongue, salivary glands

origin: pons
problems: facial paralysis or taste loss

17
Q

CN VIII

A

vestibulocochlear - hearing and balance

origin: pons/medulla
problems: hearing loss or balance problems

18
Q

CN IX

A

glossopharyngeal - pharyngeal movement, salivation, middle ear, posterior tongue, taste

origin: pons/medulla
problems: absent gag and swallow, loss of taste or loss of pharyngeal movement

19
Q

CN X

A

vagus - pharyngeal and laryngeal muscles; heart, lungs and digestive tract; tactile sensation to external ear canal; pain from mucous membranes; taste from epiglottis and pharyx

origin: medulla
problems: absent gag and swallow, loss of velar movement, loss of voice

20
Q

CN XI

A

spinal accessory - neck and shoulder muscles

origin: medulla/spinal cord
problems: droopy shoulder, neck movement

21
Q

CN XII

A

hypoglossal - muscles of tongue

origin: medulla
problems: loss of tongue movement; tongue fasciculations, tongue atrophy

Neuro Test 2 (7 decks)

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