Conjunctiva

Definition

The conjunctiva is a thin, transparent membrane that covers the white part of the eye (sclera) and lines the inside of the eyelids. It helps protect the eye by producing mucus and tears to keep it moist.

5 Must Know Facts For Your Next Test

1. The conjunctiva contains blood vessels and immune cells, playing a role in eye protection.
2. Conjunctivitis, or pink eye, is an inflammation of the conjunctiva typically caused by infections or allergies.
3. Normal microbiota present in the conjunctiva can include non-pathogenic bacteria such as Staphylococcus epidermidis.
4. Bacterial infections of the conjunctiva are often caused by species like Haemophilus influenzae and Streptococcus pneumoniae.
5. Viral infections affecting the conjunctiva are commonly caused by adenoviruses.

Review Questions

Related terms

sclera: The white outer layer of the eyeball.

conjunctivitis:

Inflammation or infection of the conjunctiva, often referred to as pink eye.

normal microbiota: Microorganisms that normally reside on and within our bodies without causing disease.