What is the difference between bulbar and palpebral conjunctiva?
The bulbar conjunctiva covers the anterior part of the sclera (the white of the eye). It does not cover the cornea. The palpebral conjunctiva covers the inner surface of the upper and lower eyelids.
What causes follicles on conjunctiva?
Acute follicular conjunctivitis is usually associated with viral (epidemic keratoconjunctivitis, Herpes zoster keratoconjunctivitis, infectious mononucleosis, Epstein-Barr virus infection) or chlamydial infections (Inclusion conjunctivitis), while chronic disease may be caused by chronic chlamydial infection (trachoma.
What is palpebral conjunctivitis?
Conjunctivitis, which is defined as inflammation of the bulbar and/or palpebral conjunctiva (the transparent lubricating mucous membrane that covers both the surface of the eye and lining of the undersurface of the eyelids), has many etiologies, including infection from various bacteria, fungi, and viruses, as well as …
What is difference between sclera and conjunctiva?
The conjunctiva contributes to the tear film and protects the eye from foreign objects and infection. The sclera is the thick white sphere of dense connective tissue that encloses the eye and maintains its shape.
What are the 2 types of conjunctiva?
The conjunctiva can be divided into three regions: the palpebral or tarsal conjunctiva, the bulbar or ocular conjunctiva, and the conjunctival fornices. The palpebral conjunctiva is further divided into the marginal, tarsal, and orbital regions.
What does a follicle?
Ovarian follicles are small sacs filled with fluid that are found inside a woman’s ovaries. They secrete hormones which influence stages of the menstrual cycle and women begin puberty with about 300,000 to 400,000 of them. Each has the potential to release an egg for fertilisation.
What is conjunctival sac?
Definition. (1) A gap or space formed between the eyelids and eyeball. (2) A fornix bound by the conjunctival membrane between the palpebral and bulbar conjuctiva of the eye.
Where is the conjunctiva in the eye?
The conjunctiva is a loose connective tissue that covers the surface of the eyeball (bulbar conjunctiva) and reflects back upon itself to form the inner layer of the eyelid (palpebral conjunctiva).
Where does the bulbar conjunctiva start?
Gross Anatomy The conjunctiva is a ring of mucus membrane that lines the posterior lids and anterior eye. The palpebral conjunctiva begins at the lid margin and lines the posterior aspect of the eyelids. It then reflects back on itself to form the dorsal (superior) and ventral (inferior) fornices.