chamber (cham´ber)

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.high altitude c;
anechoic c. a room designed to absorb all sound so as to eliminate all echoes; used for isolation and sound research on human subjects.
anterior c. of eye the space between the cornea anteriorly and the iris/pupil posteriorly, filled with a watery fluid (aqueous humor) and communicating through the pupil with the posterior anterior bulbi [NA] , camera oculi anterior, camera oculi major;
aqueous c.'s the combined anterior and posterior c.'s of the eye containing the aqueous humor. See anterior c. of eye, posterior c. of eye. See also anterior segment.
decompression c. a c. for exposing organisms to pressures below that of the atmosphere.
Haldane c. an obsolete c. for metabolic studies on animals.
high altitude c. altitude c
hyperbaric c. a c. providing pressures greater than atmospheric, commonly used to treat decompression sickness and to provide hyperbaric oxygenation.
ionization c. a c. for detecting ionization of the enclosed gas; used for determining intensity of ionizing radiation.
posterior c. of eye the ringlike space, filled with aqueous humor, between the iris/pupil anteriorly and the lens and ciliary body posterior bulbi [NA] , camera oculi minor, camera oculi posterior;
pulp c. that portion of the pulp cavity which is contained in the crown or body of the tooth.
relief c. a recess in the impression surface of a denture to reduce or eliminate pressure from that specific area of the mouth.
Sandison-Clark c. a c. that can be fitted over a hole punched in a rabbit's ear, so that tissue will grow to fill the defect between two transparent plates; if the distance between the plates is small, the living tissue can be studied microscopically.
sinuatrial c. the common c. formed by the single embryonic atrium and the right and left horns of the sinus venosus.
vitreous c. of eye posterior segment of eyeball
Zappert counting c. a special, standardized glass slide used for counting cells (especially erythrocytes and leukocytes) and other particulate material in a measured volume of fluid; the central portion is precisely ground in such a manner that the uniformly flat surface is exactly 0.1 mm lower than that of two parallel ridges on which a special, uniformly flat coverslip may be placed; accurately etched lines on the flat central portion form the boundaries of groups of squares of known areas, thereby providing the basis for determining the volume of fluid in which the cells are counted. Glass slides of this type are frequently known as hemocytometers.


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