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