Across
- 6. A heart monitor invented by Willem Einthoven in the early 1900s
- 10. An organism that can be seen only through a microscope. Examples included bacteria, protozoa, algae and fungi.
- 11. To give a person a weak form of a disease to a person or an animal, usually by injection, as protected against, not affected by a disease.
- 12. A powerful Xray that provides a cross-section of the human body invented in 1972
Down
- 1. The belief that the substance that makes up the human body are: black vile, yellow vile, blood and phlegm
- 2. Heating liquid or food to kill microorganisms
- 3. A substance that stops or slows down the growth of microorganisms
- 4. Romans built these to transport freshwater to highly populated areas
- 5. an unpleasant or unhealthy smell or vapour
- 7. A substance used to stimulate the production of antibodies and provide immunity against a disease
- 8. Medicines that treat infection by killing bacteria
- 9. Protected against, not affected by a disease
