Conjunctiva

Question 1

Definition

Answer 1

Conjunctiva is a translucent mucous membrane which lines the posterior surface of the eyelids and anterior aspect of the eyeball

Question 2

Parts of conjunctiva

Answer 2

Palpebral conjunctiva- marginal, tarsal and orbital
Bulbar conjunctiva
Conjunctival fornix

Question 3

Structure

Answer 3

Epithelium
Adenoid layer
Fibrous layer

Question 4

Glands

Answer 4

Mucin secreting glands-
goblet cells
Crypts of Henle
Glands of Manz

Accessory lacrimal glands-
Glands of Krause
Glands of Wolfring

Question 5

Arteries

Answer 5

Derived from three sources:
Peripheral arterial arcade of the eyelid
Marginal arcade of the eyelid
Anterior ciliary arteries

Question 6

Veins

Answer 6

Veins from conjunctiva drain into the venous plexus of eyelids and some around the cornea into the anterior ciliary veins

Question 7

Lymphatics

Answer 7

Lateral side- preauricular LN

Medial side- submandibular LN

Question 8

Nerve supply

Answer 8

Circumcorneal zone of conjunctiva- branches from long ciliary nerve which supply the cornea

Rest of the conjunctiva- branches from lacrimal, infratrochlear, supratrochlear, supraorbital and frontal nerves