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opthomology > Adnexa > Flashcards

Adnexa Flashcards

1
Q

What animals have closed orbit

A

herbivores

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2
Q

What animals have an open orbit

A

Carnivores

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3
Q

What significance is the pterigoid muscle

A

access point for retrobulbar disease

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4
Q

What three things make up the orbital fascia

A

Periorbita
Tenon’s capsule- surrounds globe
Fascial sheathes of EOM

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5
Q

What are the 4 rectal muscles

A

Lateral
Medial
Dorsal
Ventral

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6
Q

What are the 2 oblique muscles

A

Superior oblique

Ventral oblique

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7
Q

What does the retractor bulbi do

A

Pulls eye back into the orbit

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8
Q

What are some functions of the eyelid

A

Protect globe

Distribute tears

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9
Q

What innervates your obicularis occuli and what’s it’s main function

A

CN 7

Close eye

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10
Q

What innervates your levator palpebrae superioris

A

CN3

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11
Q

What does retractor anguli oculi do

A

supports and keeps lateral canthus extended

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12
Q

What dues Muller’s muscle do

A

Raise upper lid

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13
Q

What are meibomian glands

A

Line eyelid margin

contribute a portion of tear fluid

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14
Q

Do all animals have eyelashes

A

no

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15
Q

What is distichiasis

A

eyelash on eye

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16
Q

What is the conjuctiva

A 
Mucosal lining associated with the eye and eyelids
Vascular
Three regions 
Immune surveillance
Produce mucin 
-palpebral
-fornix
-bulbar
17
Q

What is conjunctivitis

A

Inflammation of conjunctiva

18
Q

What is the 3rd eyelid (nictatic membrane)

A

protects globe
Sits ventral medial part of eye
Tear production
Distribute tears

19
Q

What is cherry eye

A

Prolapse of third eyelid (nictating membrane)

20
Q

What does nasolacrimal system do

A

Drainage

21
Q

What does the lacrimal glands produce

A

aqueous component of tears

22
Q

What is keratoconjunctiva sicca

A

Dry eye

23
Q

What is epiphora

A

increase in tear production

decrease in tear drainage

24
Q

What is the purpose of the adnexa

A

Support the eye

opthomology (7 decks)

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