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Anatomy final exam > Lecture 20 > Flashcards

Lecture 20 Flashcards

1
Q

bones that contribute to the orbit

A

frontal
zygomatic
maxilla
lacrimal
ethmoid
sphenoid
palatine

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2
Q

what is the common tendinous ring

A

surrounds the optic canal and a portion of superior orbital fissure

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3
Q

what are the extra ocular muscles of the orbit

A

superior rectus
inferior rectus
medial rectus
lateral rectus
superior oblique
inferior oblique

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4
Q

rectus muscles insertion and origin

A

origin is all the common tendinous ring
insertion is the sclera - anterior to equator of the eyeball

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5
Q

superior oblique insertion

A

sclera - posterior to equator of the eyeball

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6
Q

superior oblique orgin

A

body of sphenoid bone

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7
Q

what is the trochlea

A

it is attached to the frontal bone and redirects the superior oblique backwards to its insertion

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8
Q

inferior oblique origin

A

orbital surface of maxilla (anterior aspect of orbit)

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9
Q

insertion of inferior oblique

A

sclera - posterior to equator of the eyeball

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10
Q

levator palpebrae superioris orgin

A

lesser wing of sphenoid bone

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11
Q

levator palpebrae superioris insertion

A

superior eyelid

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12
Q

what muscles aren’t innervated by the oculomotor nerve

A

superior oblique and lateral rectus

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13
Q

what is the superior oblique innervated by

A

trochlear nerve

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14
Q

what is lateral rectus innervated by

A

abducent nerve

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15
Q

what nerves travel through the superior orbital fissure

A

oculomotor
trochlear
abducent

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16
Q

what nerves pass through the cavernous sinus

A

trochlear
oculomotor
abducent

Anatomy final exam (7 decks)

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