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Ocular Anatomy > Conjunctiva > Flashcards

Conjunctiva Flashcards

1
Q

Conjunctiva

A

translucent mucous membrane from limbus, over sclera, and lines eyelids

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2
Q

Functions of Conjunctiva

A

smooth mvmt of eyelids of eye
lubricate eye by making mucus and tears
prevents microbes from entering eye

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3
Q

Composition of Conjunctiva

A

stratified squamous and stratified columnar epithelium
goblet cells
melanocytes, T and B Cells

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4
Q

Palpebral Conjunctiva

A

lines eyelids

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5
Q

Bulbar Conjunctiva

A

covers sclera
translucent
w/in 3mm of cornea

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6
Q

Conjunctival Fornix

A

connects palpebral and bulbar conjunctivas

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7
Q

Lateral Conjunctival Fornix

A

deepest, extends posterior to equator of globe

14mm deep

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8
Q

Medial Conjuntival Fornix

A

shallowest

7mm deep

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9
Q

Superior and Inferior Conjunctiva Fornix

A

under upper and lower lids

8-10mm deep

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10
Q

Mucocutaneous Junction

A

connects nonkeratinized and keratinized squamous palpebral conjuntival epithelium

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11
Q

Plicae Semilunaris

A

crescent shaped fold of conjunctiva in medial canthus

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12
Q

Plicae Semilunaris Composition

A 
epithelium 8-10 cells thick
goblet cells
highly vascularized
adipose tissue
smooth m
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13
Q

Plicae Semilunaris Function

A

allow full lateral mvmt without stretching tissue

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14
Q

Caruncle

A

mound of tissue overlying medial edge of plica semilunaris

has nonkeratinized epithelium and accessory lacrimal glands and skin elements

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15
Q

Blood Supply to Palpebral Conjunctiva

A

palpebral arcades

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16
Q

Blood Supply to Conjuntival Fornices

A

branches from palpebral arcades

17
Q

Blood Supply to Bulbar Conjunctiva

A

tertiary branches of palpebral arcades

anterior conjunctival arteries from ant ciliary aa

18
Q

Venous Drainage of Conjunctiva

A

Conjunctival veins draining into palpebral and ophthalmic veins

19
Q

Lateral Lymph Drainage

A

Preauricular Lymph Node

maybe Parotid

20
Q

Medial Lymph Drainage

A

Submandibular Lymph Node

21
Q

Inn of Bulbar Conjunctiva

A

long ciliary nerves

22
Q

Inn of Superior Palpebral Conjunctiva

A

frontal and lacrimal branches of V1

23
Q

Inn of Inferior Palpebral Conjunctiva

A

lacrimal n and infraorbital branch of maxillary n

24
Q

Common causes of Conjunctivitis

A

bacterial and viral infection

allergic reaction

25
Q

Tenon’s Capsule

A

behind conjunctival stroma
cavity allowing globe movement
protects and supports globe
attaches globe to orbital connective tissue

Ocular Anatomy (6 decks)

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