anterior chamber


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Related to anterior chamber: Posterior chamber, anterior chamber angle

chamber

 [chām´ber]
an enclosed space.
Chambers of the eye. From Dorland's, 2000.
anterior chamber the part of the aqueous humor-containing space of the eyeball between the cornea and iris.
counting chamber the part of a hemacytometer consisting of a microscopic slide with a depression whose base is marked in grids, and into which a measured volume of a sample of blood or bacterial culture is placed and covered with a cover glass. The number of cells and formed blood elements in the squares is counted under a microscope and used as a representative sample for calculating the unit volume.
drip chamber the expanded portion of intravenous tubing into which fluid falls, where the rate of flow can be monitored if necessary. See also intravenous infusion.
hyperbaric chamber an enclosed space in which gas (oxygen) can be raised to greater than atmospheric pressure; see also hyperbaric oxygenation.
ionization chamber an enclosure containing two or more electrodes between which an electric current may be passed when the enclosed gas is ionized by radiation; used for determining the intensity of x-rays and other rays.
posterior chamber that part of the aqueous humor–containing space of the eyeball between the iris and the lens.
vitreous chamber the vitreous humor–containing space in the eyeball, bounded anteriorly by the lens and ciliary body and posteriorly by the posterior wall of the eyeball.

anterior chamber

(ăn-tîr′ē-ər)
n.
The space between the cornea and the iris of the eye, filled with the aqueous humor and communicating through the pupil with the posterior chamber.

anterior chamber

Etymology: L, ante + prior, foremost; Gk, kamara, an arched cover
the part of the anterior cavity of the eye in front of the iris. It contains the aqueous humor.

anterior segment

The segment of the eyeball (globe) formed by invasion of neural crest cells into the space between the surface ectoderm and the lens vesicle, which develops into corneal epithelium and lens vesicle. The anterior segment is susceptible to lacerations, swelling, trauma and foreign bodies. 

Components
Sclera, conjunctiva.

anterior

situated at or directed toward the front; opposite of posterior. In quadrupeds the use of the term is limited to parts of the head but is often used to mean cranially. In bipeds such as humans it is synonymous with ventral.

anterior abdomen pain
elicited pain in the anterior abdomen caused, in cattle, by reticulitis, hepatic or splenic abscess, abomasal ulcer and intestinal obstruction.
anterior chamber
the part of the eyeball between the cornea and the iris, filled with aqueous humor.
anterior chamber angle
see iridocorneal angle.
anterior compartment
chamber of the eye bounded by the iris and cornea; contains the aqueous humor as it moves to the filtration angle; called also anterior chamber.
anterior cruciate ligament
see cranial (anterior) cruciate ligament.
anterior (cranial) drawer sign
cranial, nonrotary movement of the proximal tibia in relation to the distal femur. Normally restricted by the cranial (anterior) cruciate ligament and used as a diagnostic test for rupture of that structure.
anterior epithelial layer
of the cornea is a noncornified, stratified, squamous epithelium, continuous with the bulbar conjunctival epithelium.
anterior functional stenosis
achalasia of the reticulo-omasal sphincter causing ingesta to accumulate in the reticulorumen.
anterior limiting membrane
of the cornea is a combination of the basement membrane, a felted layer of fine collagen fibers; substantial only in primates.
anterior pituitary
anterior pituitary hormones
anterior station trypanosomes
a section of the genus Trypanosoma in which the infectious stages accumulate in the mouthparts and salivary glands of the intermediate host so that the parasite is transmitted when the insect vector takes a blood meal. Called also Salivaria. See also posterior station trypanosomes.
anterior vena cava
see vena cava.

chamber

an enclosed space.

anterior chamber
the part of the aqueous humor-containing space of the eyeball between the cornea and iris.
hyperbaric chamber
an enclosed space in which gas (oxygen) can be raised to greater than atmospheric pressure. See also hyperbaric oxygenation.
ionization chamber
see ionization chamber.
posterior chamber
that part of the aqueous humor-containing space of the eyeball between the iris and the lens.
vitreous chamber
the vitreous humor-containing space in the eyeball, bounded anteriorly by the lens and ciliary body and posteriorly by the posterior wall of the eyeball.
References in periodicals archive ?
Changes in axial length, central cornea thickness, and anterior chamber depth after rhegmatogenous retinal detachment repair.
Angle closure through "pure" pupillary block: : shallow anterior chamber (AC), "iris bombe"; after laser iridotomy the aspect of the iris becomes planar and the angle opens widely (Figure 14);
The safety of anterior chamber paracentesis in patients with uveitis.
Removal of the Cataract shifts the iris backwards by 100 thus opening the angle of the anterior chamber and increasing the outflow of aqueous5,6.
This is pertinent in Chinese eyes with small palpebral fissures and shallow anterior chamber depth [3].
Variability of axial length, anterior chamber depth, and lens thickness in the cataractous eye.
The anterior chamber OS remained at normal depth and the anterior and posterior inflammation OS had improved significantly.
The mechanism of primary angle closure is not fully understood, however treatment with a YAG laser, creating a pathway from the posterior to the anterior chamber has been found to treat primary angle closure glaucoma.
1) ACD measurement assessment can also provide an indicator of glaucoma, with the anterior chamber being shallower in patients at risk.
At each UBM examination, axial images of the anterior chamber and radial sections of the superior, lateral, inferior, and medial quadrants were obtained.

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