Conjunctiva
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| Conjunctiva | ||
|---|---|---|
| The upper half of a sagittal section through the front of the eyeball. (Label for 'Conjunctiva' visible at center-left.) | ||
| Latin | ' | |
| Gray's | subject #227 1026 | |
| System | ||
| MeSH | A09.371.192 | |
 | ||
| Horizontal section of the eyeball. (Conjunctiva labeled at upper left.) | ||
The conjunctiva is a membrane that covers the sclera (white part of the eye) and lines the inside of the eyelids.
Contents |
[edit] Function
It helps lubricate the eye by producing mucus and tears, although a smaller volume of tears than the lacrimal gland.[1]
[edit] Histology
The conjunctiva is typically divided into three parts:
- Palpebral or tarsal conjunctiva: The conjunctiva lining the eyelids.
- Fornix conjunctiva: The conjunctiva where the inner part of the eyelids and the eyeball meet, the palpebral conjunctiva is reflected at the superior fornix and the inferior fornix to become the bulbar conjunctiva.
- Bulbar or ocular conjunctiva: The conjunctiva covering the eyeball, over the sclera. This region of the conjunctiva is bound tightly and moves with the eyeball movements.
[edit] Diseases and disorders
- Main article: List of eye diseases and disorders
Disorders of the conjunctiva and cornea are a common source of eye complaints.
The surface of the eye is exposed to various external influences and is especially suspectible to trauma, infections, and allergic reactions.
Degeneration and dystrophia are less common causes of problems.
The conjunctiva is best known because of its inflamed state, conjunctivitis (more commonly known as pinkeye).
Conjunctival irritation is one of the adverse health effects that can take place after overexposure to VOCs (Volatile organic compounds).
[edit] See also
[edit] Additional images
 Sagittal section through the upper eyelid. |
[edit] References
- ↑ London Place Eye Center (2003). Conjunctivitis. Retrieved July 25, 2004.
[edit] External links
- Medicinenet.com (1999). Conjunctiva. Retrieved July 25, 2004.
- MedEd at Loyola medicine/pulmonar/images/anatomy/eyeli.jpg
| Sensory system - Visual system - Eye - edit |
|---|
| Anterior chamber | Aqueous humour | Blind spot | Choroid | Ciliary body | Conjunctiva | Cornea | Iris | Lens | Macula | Optic disc | Optic fovea | Posterior chamber | Pupil | Retina | Schlemm's canal | Sclera | Tapetum lucidum | Trabecular meshwork | Vitreous humour |
| This page uses content from the English-language version of Wikipedia. The original article was at Conjunctiva. The list of authors can be seen in the page history. As with Psychology Wiki, the text of Wikipedia is available under the GNU Free Documentation License. |
