Chin: Medically, the mentum. The lower portion of the face below the lower lip including the prominence of the lower jaw and the line of fusion of the two separate halves of the jawbone (mandible). This line of fusion (called the symphysis menti) encloses a triangular area at tip of the chin (termed the mental protuberance). On each side, below the second premolar tooth, is the mental foramen, an opening for the passage of blood vessels and a nerve that supply the chin.
- Chinese restaurant syndrome
Chinese restaurant syndrome: A syndrome first described in 1968 in people who had eaten Chinese food on which MSG (monosodium glutamate) had been lavished. The syndrome only seems to occur in some people. Their symptoms may include headache, throbbing of the head, dizziness, lightheadedness, a feeling of facial pressure, tightness of the jaw, burning or […]
Chiron: In Greek mythology, the centaur who, wounded by Hercules, invented medicine in order to heal himself. Chiron taught Asclepius the art of healing, which became the source of all divine medical knowledge among the Greeks. Chiron was also the teacher of the hero, Achilles, who was thought to have had some special medical knowledge. […]
Chiropractic: A system of diagnosis and treatment based on the concept that the nervous system coordinates all of the body’s functions, and that disease results from a lack of normal nerve function. Chiropractic employs manipulation and adjustment of body structures, such as the spinal column, so that pressure on nerves coming from the spinal cord […]
Chiropractor: A chiropractic practitioner. Becoming a doctor of chiropractic (DC) requires a minimum of 2 years of college and 4 years in a school of chiropractic medicine. Some chiropractors also earn a traditional medical degree (MD) or other additional qualifications. Not all chiropractors are alike in their practice. The International Chiropractors Association believes that patients […]
Chlamydia: The agent of a sexually transmitted disease, a type of bacteria found in the cervix, urethra, throat, or rectum that acts very much like gonorrhea in the way it is spread, the symptoms it produces, and its long-term consequences. Chlamydia is destructive to the Fallopian tubes, causing infertility, tubal pregnancy, and severe pelvic infection. […]