Category: C
-
Chromatic adaptation
A change in hue or saturation, or both, resulting from pre-exposure to light of other wavelengths.
-
Capillary action
A surface tension effect shown by the elevation or depression of a liquid at the region of contact with a solid, as in capillary tubes.
-
Calorigenic action
Heat produced by the metabolism of food.
-
Compensated acidosis
Acidosis in which the pH of body fluids has returned to normal. Compensatory mechanisms maintain the normal ratio of bicarbonate to carbonic acid (approx. 20:1) in blood plasma, even though the bicarbonate level is decreased or the carbon dioxide level is elevated.
-
Carboxylic acid
Any acid containing the group-COOH. The simplest examples are formic and acetic acids.
-
Cricopharyngeal achalasia
Failure of the lower pharyngeal muscles to relax during swallowing. The condition may cause dysphagia or aspiration of food.
-
Centripetal acceleration
Rate of change in velocity per unit of time while on a circular or curved course.
-
Colonic absorption
The uptake of water, electrolytes such as sodium, amino acids, and some drugs by the mucosa of the large bowel.
-
Carbohydrate absorption
The taking up of the monosaccharides by the brush border of the small intestine.
-
Constructional ability
The ability to copy or draw shapes, figures, or lines (e.g., with a pen and paper). This nonverbal ability depends on the integration of several higher brain functions, including perception, planning, and motor coordination. It is lost in organic brain syndromes.