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Introduction To Health Sciences Vocab

Subject : health-sciences
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A condition in which the conjunctiva is inflamed.






2. Countries that are only partly industrialised and where national wealth is below that of the developed economies (also known as low- and middle-income countries). They rely to a much greater degree than developed countries on subsistence farming - sm






3. The structure within the eye where the iris meets the cornea - where excess aqueous humour from the front of the eye can drain.






4. A condition in which the cornea is irregularly curved.






5. A class of substances arising from outside the body - but Which bear a close similarity to naturally occurring opioids in their structure and effect; they include heroin derived from the opium poppy and morphine.






6. The part of the nervous system consisting of the brain and spinal cord.






7. The unit used to measure equivalent dose and effective dose (Sv).






8. Particulates suspended in air that are less than 10 micrometres in diameter.






9. The change of thickness of the lens of the eye so that focal length changes. This allows light from objects at different distances to be sharply focused in turn on the retina.






10. An electrically charged atom or molecule. May be positively or negatively charged; e.g. Na+ (the positively charged sodium ion) and Cl- (the negatively charged chloride ion).






11. The junction where a neuron influences another cell - the latter being either another neuron or a muscle cell. (






12. The flow of blood back to the heart in the veins.






13. Qualified to employ a range of equipment such as X-rays - MRI scanners - etc. to produce images to diagnose an injury or disease. They will then have undergone further specialist training in mammography. (Two types - diagnostic and therapeutic; the l






14. A state of inadequate supply of oxygen to the brain and other vital organs - often as a result of severe blood loss.






15. Each element has been assigned one of these - often the first letter - or two of the first letters of the name; for example - H stands for hydrogen - C for carbon - N for nitrogen - Ca for calcium and O for oxygen.






16. A simple way of presenting numerical data visually - so as to emphasise the relative size of different numbers. May be arranged vertically or horizontally.






17. A test that evaluates how well the lungs work; also known as a pulmonary function test.






18. Two or more atoms held together by chemical bonds - e.g. hydrogen (H2) - water (H2O) - carbon dioxide (CO2).






19. Any fracture where the skin has not been broken.






20. Optimal corrected visual acuity worse than 6/18 - i.e. wearing optimal correcting lenses - the individual can distinguish letters on a test chart at 6 metres that a person with normal vision could read at 18 metres






21. Cells that can divide to produce daughter cells - which can then differentiate to become any of a range of different cell types.






22. A reduction in the number of photons passing through a material. It is caused by both absorption and scattering.






23. The pivot point about which a lever rotates.






24. The basic structural unit of all organisms; there are many different kinds in multicellular organisms. In mammals - including humans - they are usually composed of a nucleus containing genetic material - surrounded by the watery cytosol containing va






25. A measure of the dose of ionising radiation to an organ that takes into account the type of radiation used. Some types of radiation are more damaging than others (because they tend to lead to double-strand breaks in the DNA rather than the more easil






26. The photoreceptor cells located in the retina that are responsible for daytime and colour vision.






27. The share of the total morbidity in a population Which is due to a particular cause; it is usually expressed as a percentage.






28. In screening - a person whose screening test result is negative (indicating no disease) - and who actually does not have the disease.






29. A graphical method of showing whether two numerical variables are related to one another. They are called 'variables' because they can each have a range of possible values. Each data point represents a particular entity - such as a country - for whic






30. A symptom of trachoma in which eyelashes grow inwards and scratch the conjunctiva - causing pain - scarring and eventually blindness.






31. Disease - disorder or disability.






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






33. The system of organs and structures in which gas exchange takes place. In mammals it consists of the airways - the lungs and the muscles that mediate the movement of air into and out of the lungs.






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






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






36. 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.






37. The tissues that attach muscles to bones.






38. A non-invasive method of measuring the level of oxygenation of the blood by using light absorption to calculate the relative levels of haemoglobin and oxyhaemoglobin.






39. Microbes living in and around us - most of which are harmless or beneficial but some of which can cause disease.






40. Microbes that cause disease.






41. Immune system cells that circulate around the body helping to protect it from infection and some other types of disease; also known as white cells.






42. A condition characterised by inflammation of the walls of the airways and excess production of mucus. It results in a persistent (chronic) cough with production of sputum - obstruction of airflow and increased vulnerability to respiratory infections.






43. Categorised into three progressive stages: fatty liver - hepatitis and cirrhosis.






44. An internationally recognised health indicator - defined as the number of babies in every 1000 live births who die in their first year of life.






45. The use of a spirometer to measure the volume of air entering and leaving the lungs.






46. An activity where the eye is constantly focused on objects nearby (e.g. reading).






47. The type of muscle tissue that is responsible for moving parts of the musculoskeletal system.






48. Pain that is triggered by a stimulus that causes actual or potential damage to the tissues of the body.






49. Radiation which can cause ionisation. From the electromagnetic spectrum this includes gamma rays - X-rays and some high-energy ultraviolet radiation.






50. The number of photons passing through a given area per second.