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ENDO > Nerves of Middle Cranial Fossa > Flashcards

Nerves of Middle Cranial Fossa Flashcards

1
Q

what cranial nerves are found in the middle cranial fossa

A

II, III, IV, V, VI

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2
Q

what is CN II

A

optic chiasma

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3
Q

what is CN III

A

oculomotor nerve

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4
Q

what is CN IV

A

trochlear nerve

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5
Q

what is CN V

A

trigeminal nerve, split into V1,V2 and V3`

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6
Q

what is CN VI

A

abducent nerve

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7
Q

what is the function of the optic chiasma

A

conducts APs bilaterally from the nasal retinae

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8
Q

what functional deficit can arise from the optic chiasma

A

bitemporal hemianopia

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9
Q

what is the function of the oculomotor nerve

A

motor to muscles that move the eyeball, and parasympathetic to constrictor pupillae

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10
Q

what is the function of the trochlear nerve

A

motor to ONE muscle that moves the globe

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11
Q

what functional deficits can arise from the oculomotor nerve

A

several eye movement deficits, dilated pupil

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12
Q

what functional deficits can arise from the trochlear nerve

A

difficulty looking inferiorly and laterally

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13
Q

what are the functions of the trigeminal nerves

A

sensory to most of face(CN V1, V2 + V3)

motor to muscles of mastication(CN V3)

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14
Q

what functional deficits can arise from the trigeminal nerves

A

sensory symptoms to face and difficulty masticating(chewing)

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15
Q

what is the function of the abducent nerve

A

motor to ONE muscle that moves the globe

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16
Q

what functional deficit can arise from the abducent nerve

A

difficulty abducting eye

17
Q

what lobes of the brain lie in the middle cranial fossa

A

the temporal lobes

18
Q

what foramen does the CN V1 branch of the trigeminal nerve pass through

A

superior orbital fissure

19
Q

what foramen does the CN V2 branch of the trigeminal nerve pass through

A

foramen rotundum

20
Q

what foramen does the CN V3 branch of the trigeminal nerve pass through

A

foramen ovale

ENDO (30 decks)

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