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Introduction To Health Sciences Vocab
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Introduction To Health Sciences Vocab
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1. The transparent fluid that fills the space between the cornea and the lens of the eye.

2. The skin layer that lies beneath the epidermis and provides the strength and elasticity of the skin.

3. The layer of the eye - between retina and sclera - which absorbs any light that has not interacted with the rods and cones in the retina.

4. The blood pressure that is detected between heart contractions (lower than the systolic blood pressure).

5. A technique for monitoring the activity of the different regions of the brain. One method involves injecting a radioactive tracer substance and measuring its later appearance in different brain regions; high concentrations correspond to regions of hi

6. A protein that is abundant in the extracellular matrix and can form long thin fibres to provide structure to many tissues.

7. Any one of numerous proteins in a mammalian cell that are part of the machinery that detects and repairs mistakes in DNA caused by errors during DNA copying - or by the effects of mutagens. They help to minimise the number of mutations - and when the

8. In screening - a person whose screening test result is positive (indicating disease) - but who actually does not have the disease.

9. A measure of the amount of energy from ionising radiation absorbed per kilogram of tissue. It is measured in units of grays where 1 Gy = 1 joule per kilogram.

10. Tells you which type of atoms are bonded together to make up a compound or molecule - using symbols for its constituent elements. It also shows How many of each type of atom there are (e.g. the formula for carbon dioxide - CO2 - shows it has one carb

11. Bonding Which is due to the electrical attraction of equal and opposite electrical charges and which holds the ions in salt crystals together.

12. The opening at the centre of the iris that allows light to enter into the eye.

13. The study of toxins and their effects on living organisms.

14. A type of cell that can migrate into wound sites and make new extracellular matrix proteins such as collagen.

15. Over time - a need for an increasing amount of drug to obtain the same level of effect - e.g. the amount of alcohol required to produce intoxication.

16. Substances that have the effect of reducing pain.

17. The smallest unit of an element that still has the properties of the element. Made up of a positively charged atomic nucleus - containing protons and neutrons - surrounded by negatively charged electrons.

18. The volume of air remaining in the lungs after a maximum expiration (abbreviated to RV).

19. The concentration of ethanol in blood given in mg per 100 ml.

20. A drug that acts to reduce the signs of inflammation - e.g. swelling - redness - heat and pain.

21. Distance between one peak of a wave and the next peak - measured in metres (m).

22. A test that measures the levels of oxygen and carbon dioxide in a sample of blood from an artery - e.g. in the wrist. Used to evaluate the efficiency of gas exchange between the blood and the lungs.

23. The value of a characteristic in terms of its contribution to the survival and reproductive chances of an animal.

24. A bond between two atoms formed when an outer electron from each of the atoms is shared between them to form an electron pair bond.

25. A constantly repeating variation of some quantity that transfers energy from one position in a medium to another.