Category: O

Impairment of the central nervous system.  

Hypertension that develops as a result of a specific physical cause, hypertension.  

The presence of symptoms of disease of the heart due to changes or breakdown of cardiac tissues, functional heart disease.  

The theory that existing living forms have been derived by gradual modification from earlier and simpler forms.  

A carbon-containing compound. There are four classes of major nutrients: (a) carbohydrates, (b) proteins, (c) lipids, and (d) vitamins. A compound containing carbon. Such compounds include carbohydrates, proteins, and fats.  

A substance, such as an acid, alkali, salt, or synthetic compound obtained by a chemical process, prepared for use in chemical manufacture, or used for producing a chemical effect, inorganic chemical.  

A disorder characterized by mental confusion, disorientation, and decreased intellectual function. Possibly caused by the prolonged use of psychoactive drugs. Any of a large group of acute and chronic mental disorders associated with brain damage or impaired cerebral function. A cognitive, intellectual, or mental dysfunction that stems from physical, rather than psychiatric, origins is known…

A person who donates one or more of his or her organs to another person whose organ is diseased, injured, or lacking.  

In epidemiology, a variable having values that can be meaningfully ordered or ranked.  

A scale in which responses are ranked ordered by relative magnitude but in which the intervals between successive ranks are not necessarily equal, categorical scale; interval scale; ratio scale.