(chām′bĕr )

[Fr. chambre, fr. L. camera, camara, fr. Gr. kamara, vaulted room, vault]
A compartment or closed space.

altitude chamber

SEE: Low-pressure chamber.

anterior chamber

The space between the cornea and the iris of the eye.
SEE: posterior chamber

aqueous chamber

SEE: Anterior chamber

Boyden chamber

SEE: Boyden chamber

drip chamber

A hollow reservoir built into intravenous tubing that collects fluids before they are infused into the patient.

hyperbaric chamber

An airtight enclosure strong enough to withstand high internal pressure. It is used to expose animals, humans, or an entire surgical team to increased air pressure.
SYN: SEE: pressure chamber
SEE: hyperbaric oxygenation

ionization chamber

A device used to measure radiation by equating ion production in a gas chamber with the intensity of an electrical charge.

low-pressure chamber

An enclosure designed to simulate high altitudes by exposing humans or animals to low atmospheric pressure. Such studies are essential for simulated flights into the atmosphere and space.
SYN: SEE: altitude chamber

monoplace chamber

A hyperbaric chamber that supplies an enriched oxygen environment to a single person (or to a small child with a family member or nurse in attendance). It may be used to treat those suspected of severe carbon monoxide exposure.

multiplace chamber

A hyberbaric chamber that supplies an enriched oxygen environment to several patients who have suffered severe carbon monoxide exposure. All the patients wear their own masks and have their own oxygen supply within the chamber.

operant conditioning chamber

SEE: Skinner box.

posterior chamber

In the eye, the space between the iris and the lens. It is occupied by the aqueous humor, which circulates from the posterior chamber, through the pupil and into the anterior chamber.
SEE: anterior chamber; SEE: eye for illus

pressure chamber

SEE: Hyperbaric chamber.

pulp chamber

The central cavity of a tooth. The pulp canal contains arteries, veins, lymphatic vessels, and sensory nerve endings. Anatomically, the pulp chamber can be divided into the body and the pulp horns. Pulp horns correspond to the cusps of the teeth.
SEE: root canal; SEE: pulp cavity

suction control chamber

The part of a chest tube drainage system that sets the negative pressure applied to the pleural space, facilitating the drainage of gas and fluid.

valved holding chamber

SEE: metered-dose inhaler

vitreous chamber

The cavity behind the lens in the eye that contains the vitreous humor.

water seal chamber

The component of a chest tube drainage system that permits the drainage of gas from the patient's pleural space but does not permit that gas to return. It typically holds about 2 cm of sterile water.

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