Definitions

3. Protected against, not affected by a disease
5. An unpleasant or unhealthy smell or vapour
7. The belief that the substances that make up the human body are: black bile, yellow bile, blood, and phlegm.
9. A heart monitor invented by Willem Einthoven in the early 1900’s
10. A powerful Xray that provides a cross-section of the human body invented in 1972 CAT
11. to give a weak form of a disease to a person or animal, usually by injection, as a protection against that disease
12. a substance used to stimulate the production of antibodies and provide immunity against a disease

1. Heating liquid or food to kill microorganism’s
2. Medicines that treat infections by killing bacteria
4. An organism that can be seen only through a microscope. Examples include bacteria, protozoa, algae, and fungi.
6. a substance that stops or slows down the growth of microorganisms.
8. the Romans built these to transport fresh water to highly populated areas