Orbital Cavity Flashcards

1
Q

This gland is located with the cavity at its lateral aspect

A

Lacrimal gland

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2
Q

This protects the eye from external irritation

A

Eyelid

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3
Q

Which among the angles of the eyelids are more acute

A

Lateral canthal angle

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4
Q

What are the important structures of the medial canthal angle

A

Caruncle
Plica semilunaris
Lacrimal papilla
Punctum lacrimale

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5
Q

What gland of the eyelids are the sebaceous gland found at the root of the eyelashes

A

Gland of Zeis

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6
Q

What gland gives an oily secretion to the lid margin

A

Meibomian gland

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7
Q

Meibomian gland is also called what

A

Tarsal gland

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8
Q

This is a small non malignant localized swelling of the eyelid resulting from obstruction and retained secretions of the tarsal gland

A

Chalazion

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9
Q

A furuncle on the margin of the eyelid originating in the sebaceous gland of an eyelash

A

Hordeolum

Stye

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10
Q

This part of the orbicularis oris is responsible for the forceful close of the eye

A

Orbital part

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11
Q

Part of the orbicularis oris involve in blinking

A

Palpebral part

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12
Q

Without the tarsus, there would be presence of what

A

Flappy eyelids

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13
Q

This is the origin of the pretarsal

A

Levator aponeurosis

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14
Q

Drooping of eyelids

A

Ptosis

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15
Q

What part of the conjunctiva covers the sclera

A

Bulbar part

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16
Q

This is a fibroelastic membrane that envelopes the posterior aspect going from optic nerve to the ciliary body

A

Tenon’s capsule

17
Q

What part of the lacrimal apparatus where the lacrimal gland rest on the anterolateral surface of the orbital roof

A

Secretory portion

18
Q

This part of the orbital wall is the thinnest but the least fractured

A

Medial wall

19
Q

This part of the orbital wall is rarely fractured and also used as the access point during surgery

A

Lateral wall

20
Q

This is the inability to elevate the affects eye because of the orbital muscle entrapment

A

Orbital floor fracture

21
Q

This divides the central portion of the superior orbital fissure

A

Annulus of Zinn
Common tendinous ring
Annular ring

22
Q

Actions of the extraocular muscles of the oblique muscle

A

Abductors

23
Q

Actions of the extraocular muscles of the vertical recti muscles

A

Adductors

24
Q

Actions of the extraocular muscles of the superior muscles

A

Intorters

25
Q

Actions of the extraocular muscles of the inferior muscles

A

Extorters

26
Q

Medial deviation patient with strabismus

A

Esotropia

27
Q

Lateral deviation patient with strabismus

A

Exotropia

28
Q

Inferior Oculomotor nerve supplies what muscle

A

Inferior rectus
Inferior medial rectus
Inferior oblique

29
Q

Superior part of the Oculomotor nerve supplies what muscle

A

Superior rectus

Levator palpebral muscle

30
Q

Commonly referred to as the white of the eye

A

Sclera

31
Q

This gives nourishment to the eyes

A

Choroid

32
Q

This is a clear fluid that fills the anterior and posterior chamber of ciliary process

A

Aqueous humor

33
Q

Where does the aqueous humor drain into

A

Canal of schlemm