Posterior chamber
The space in the eye behind the iris and in front of the lens. (The iris is the colored ring of tissue that regulates the amount of light entering the eye by adjusting the size of the pupil. The lens is the transparent biconvex body in the eye that refracts light. By "biconvex" is meant that it is convex, that it protrudes, on both sides.) The posterior chamber is filled with a watery fluid known as the aqueous humor, or aqueous. Produced by a structure alongside the lens called the ciliary body, the aqueous passes into the posterior chamber and then flows forward through the pupil into the anterior chamber of the eye.

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posterior chamber n a narrow space in the eye behind the peripheral part of the iris and in front of the suspensory ligament of the lens and the ciliary processes compare ANTERIOR CHAMBER

Medical dictionary. 2011.

Look at other dictionaries:

  • Posterior chamber — Infobox Anatomy Name = PAGENAME Latin = c. posterior bulbi GraySubject = 225 GrayPage = 1012 Caption = The upper half of a sagittal section through the front of the eyeball. (Posterior chamber of eye labeled at center right.) Caption2 = Schematic …   Wikipedia

  • posterior chamber — Made up of the terminal portion of the foregut and the anterior portion of the midgut; often called the pyloric stomach [Bliss, 1982] …   Crustacea glossary

  • posterior chamber of eye — camera posterior bulbi oculi …   Medical dictionary

  • chamber — A compartment or enclosed space. SEE ALSO: camera. [L. camera] altitude c. a decompression c. for simulating a high altitude environment, particularly its low barometric pressure. SYN: high altitude c.. anechoic c. a room designed to absorb all… …   Medical dictionary

  • Chamber, posterior — The space in the eye behind the iris and in front of the lens. The iris is the colored ring of tissue that regulates the amount of light entering the eye by adjusting the size of the pupil. The lens is the transparent biconvex body in the eye… …   Medical dictionary

  • Chamber, anterior — The space in the eye that is behind the cornea and in front of the iris. The cornea is the outer, transparent, dome like structure that covers the iris, pupil, and the anterior chamber. The iris is the colored ring of tissue suspended behind the… …   Medical dictionary

  • posterior — 1. After, in relation to time or space. 2. [NA] In human anatomy, denoting the back surface of the body. Often used to indicate the position of one structure relative to another, i.e., nearer the back of the body. SYN …   Medical dictionary

  • posterior — adj. situated at or near the back of the body or an organ. The posterior chamber of the eye is the rear section, behind the lens, which is filled with vitreous humour …   The new mediacal dictionary

  • Anterior chamber — The space in the eye that is behind the cornea and in front of the iris. The cornea is the outer, transparent, dome like structure that covers the iris, pupil, and the anterior chamber. The iris is the colored ring of tissue suspended behind the… …   Medical dictionary

  • cámara posterior — Eng. Posterior chamber Parte media del ojo que se extiende desde la cara posterior del iris hasta el cristalino, zónula y cuerpo ciliar …   Diccionario de oftalmología

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