Cartilage: Firm, rubbery tissue that cushions bones at joints. A flexible kind of cartilage makes up other parts of the body, such as the larynx and the outside parts of the ears.
- Cartilage hair hypoplasia syndrome
Cartilage hair hypoplasia syndrome: A specific genetic form of short-limbed dwarfism with skeletal features that also include normal head, inability to fully extends the elbows, chest cage deformity, bow legs (genu varum), and the tibia shorter than the fibula. The fingers are usually loose-jointed and the fingernails foreshortened. Biopsy shows hypoplasia (underdevelopment) of cartilage to […]
- Casals-Ariet, Jordi
Casals-Ariet, Jordi: (1911-2004) Spanish-born American physician and viral epidemiologist who discovered Lassa virus in 1969. Dr. Casals nearly died in the process. Casals’s team at Yale University found the Lassa virus in the blood of three American missionary nurses who had contracted Lassa fever in northern Nigeria. The Yale team obtained evidence of a new […]
Cascade: A sequence of successive activation reactions involving enzymes (enzyme cascade) or hormones (hormone cascade) characterized by a series of amplifications of an initial stimulus. In blood coagulation, for example, each enzyme activates the next until the final product, the fibrin clot, is reached.
- Case-fatality proportion
Case-fatality proportion: The number of cases of a disease ending in death compared to the number of cases of the disease. Usually expressed as a percentage.
- Case-to-infection ratio
Case-to-infection ratio: The ratio of the number of cases of a disease compared to the number of infections with the agent that causes the disease. Also called the case-to-infection proportion.