conjunctiva

conjunctiva /con·junc·ti·va/ (kon-junk´tĭ-vah) pl. conjunc´tivae   [L.] the delicate membrane lining the eyelids and covering the eyeball.conjuncti´val

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con·junc·ti·va (knjngk-tv)

n. pl. con·junc·ti·vas or con·junc·ti·vae (-v)

The mucous membrane that lines the inner eyelid and the exposed surface of the eyeball.

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Conjunctiva

The conjunctiva is a clear layer of cells that covers the eye and directly contacts the atmosphere. The conjunctiva is about five-cells thick.

Mentioned in: Eye Cancer, Eye Examination, Eye Muscle Surgery, Eyelid Disorders, Filariasis, Foreign Objects, Inclusion Conjunctivitis, Tularemia, Vitamin A Deficiency

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conjunctiva

[kon′jungktī′və]

Etymology: L, conjunctivus, connecting

the mucous membrane lining the inner surfaces of the eyelids and anterior part of the sclera. The palpebral conjunctiva lines the inner surface of the eyelids and is thick, opaque, and highly vascular. The bulbar conjunctiva is loosely connected, thin, and transparent, covering the sclera of the anterior third of the eye. conjunctival, adj.

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conjunctiva (kn·jnk·tiˑ·v),

n the inner lining and mucous membranes of the eyelids and the front of the sclera.

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conjunctiva (kon´junktī´v),

the mu-cous membrane lining the inner surfaces of the eyelids and anterior part of the sclera.

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conjunctiva

pl. conjunctivae [L.] the delicate membrane lining the eyelids and covering parts of the eyeball. Is in several parts, bulbar, fornical, marginal, nictital, palpebral and tarsal, named for anatomical reasons.

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conjunctiva 

A thin transparent mucous membrane lining the posterior surface of the eyelids from the eyelid margin and reflected forward onto the anterior part of the eyeball where it merges with the corneal epithelium at the limbus. It thus forms a sac, the conjunctival sac, which is open at the palpebral fissure and closed when the eyes are shut. The depths of the unextended sac are 14-16 mm superiorly and 9-11 mm inferiorly. The conjunctiva is divided into three portions: (1) The portion that lines the posterior surface of the eyelids is called the palpebral conjunctiva. It is itself composed of the marginal conjunctiva, which extends from the eyelid margin to the tarsal conjunctiva; the tarsal conjunctiva, which extends from the marginal conjunctiva to the orbital conjunctiva; and the orbital conjunctiva, which extends from the tarsal conjunctiva to the fornix. (2) That lining the eyeball is the bulbar conjunctiva. It is itself composed of the limbal conjunctiva, which is fused with the episclera at the limbus and the scleral conjunctiva, which extends from the limbal conjunctiva to the fornix. (3) The intermediate part forming the bottom of the conjunctival sac, unattached to the eyelids or the eyeball and joining the bulbar and the palpebral portion is called the fornix (conjunctival fold, cul-de-sac). See dyskeratosis; lid eversion; conjunctival gland; Krause's end bulbs; subtarsal sulcus.