What is the palpebral conjunctiva?

The palpebral conjunctiva lines the eyelids. The bulbar conjunctiva is found on the eyeball over the anterior sclera. Tenon’s capsule binds it to the underlying sclera. This protective covering is loose and flexible, unlike its bulbar counterpart, allowing for movement of the globe and eyelids.

Is the conjunctiva the same as the cornea?

The conjunctiva is the membrane that lines the eyelid and loops back to cover the sclera (the tough white fiber layer covering the eye), right up to the edge of the cornea (the clear layer in front of the iris and pupil—see Structure and Function of the Eyes.

What does the conjunctiva secrete?

The conjunctiva helps lubricate the eye by producing mucus and tears, although a smaller volume of tears than the lacrimal gland. It also contributes to immune surveillance and helps to prevent the entrance of microbes into the eye.

What is another name for conjunctiva?

Holonyms for Conjunctiva: lid, eye, palpebra, optic, eyelid, oculus.

What is conjunctiva in biology?

(KON-junk-TY-vuh) A membrane that lines the inner surface of the eyelid and also covers the front part of the eye.

How is conjunctiva formed?

It starts from the intermarginal strips of the eyelid as a continuation of the skin. It is made up of stratified epithelium. Marginal conjunctiva continues into the back or posterior surface of the lid for a short distance of 2 mm, up to a shallow groove or fold, where it merges with the conjunctiva proper.

Palpebral conjunctiva. This portion covers the inner surface of both the upper and lower eyelids. (Another term for the palpebral conjunctiva is tarsal conjunctiva.) The bulbar and palpebral conjunctiva are continuous (see illustration). This feature makes it impossible for a contact lens (or anything else) to get lost behind your eye.

What part of the eye is the conjunctiva?

Conjunctiva Definition. This portion of the conjunctiva covers the anterior part of the sclera (the “white” of the eye). The bulbar conjunctiva stops at the junction between the sclera and cornea; it does not cover the cornea. Palpebral conjunctiva. This portion covers the inner surface of both the upper and lower eyelids.

What does the bulbar conjunctiva cover?

Bulbar conjunctiva. This portion of the conjunctiva covers the anterior part of the sclera (the “white” of the eye). The bulbar conjunctiva stops at the junction between the sclera and cornea; it does not cover the cornea. Palpebral conjunctiva.

What does it mean when your conjunctiva is pale?

Conjunctival pallor. This is an unhealthy pale appearance to the palpebral conjunctiva that can be a sign of anemia. Injected conjunctiva. This is a red eye caused by dilation of blood vessels in the conjunctiva. It can have many causes. [Read more about red eyes .]