Category: C
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Costal cartilage
Cartilage which forms the end of each rib and either joins the rib to the breastbone or to the rib above. A cartilage that connects a rib to the breastbone (sternum). The first seven ribs (true ribs) are directly connected to the sternum by individual costal cartilages. The next three ribs are indirectly connected to…
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Corynebacterium
A genus of bacteria which includes the bacterium which causes diphtheria. A genus of Gram-positive, mostly aerobic, nonmotile rodlike bacteria that frequently bear club-shaped swellings. Many species cause disease in man, domestic animals, birds, and plants; some are found in dairy products. The species C. diphtheriae (Klebs-Loffler bacillus), which occurs in three types, gravis, intermedius,…
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Corticospinal
Referring to both the cerebral cortex and the spinal cord.
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Corset
A piece of stiff clothing worn on the chest or over the trunk to support the body, e.g. after a back injury. A cloth and elastic back support brace worn to relieve strain by restricting motion in the lower back when a person is in a seated or standing position. Corsets can offer comfort and…
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Corrugator muscle
One of the muscles which produce vertical wrinkles on the forehead when someone frowns. Aa facial muscle that draws the eyebrows together to frown. Muscle located beneath the frontalis and orbicularis oculi that draws the eyebrow down and wrinkles the forehead vertically.
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Corrigan’s pulse
A condition occurring in the arterial pulse in the neck in which there is a visible rise in pressure followed by a sudden collapse, caused by aortic regurgitation. The name applied to the collapsing pulse found with incompetence of the heart’s aortic valve. It is so-called after Sir Dominic John Corrigan (1802-80), the Dublin physician,…
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Corpus haemorrhagicum
A blood clot formed in an ovary where a Graafian follicle has ruptured.
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Corpus cavernosum
A part of the erectile tissue in the penis and clitoris. Either of a pair of cylindrical blood sinuses that form the erectile tissue of the ‘penis and clitoris. In the penis a third sinus, the corpus spongiosum, encloses the urethra and extends into the glans. All these sinuses have a sponge like structure that…
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Corpus albicans
Scar tissue which replaces the corpus luteum in the ovary. The residual body of scar tissue that remains in the ovary at the point where a corpus luteum has regressed after its secretory activity has ceased. A mass of fibrous tissue that replaces the regressing corpus luteum following rupture of the graafian follicle. It forms…
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Cor pulmonale
Pulmonary heart disease in which the right ventricle is enlarged. Failure of the right side of the heart, generally in connection with lung and breathing problems, such as emphysema. Heart disease characterized by right ventricular hypertrophy due to lung disease. Enlargement of the right lower chamber of the heart (ventricle) caused by inadequate lung function;…