Category: H
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Human nature
The general behavioural characteristics of human beings.
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Human leucocyte antigen
Any of the system of antigens on the surface of cells which need to be histocompatible to allow transplants to take place.
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Human crutch
A method of helping an injured person to walk, where they rest one arm over the shoulders of the person helping.
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Human chorionic gonadotrophin
A hormone produced by the placenta, which suppresses the mother’s usual menstrual cycle during pregnancy. It is found in the urine during pregnancy, and can be given by injection to encourage ovulation and help a woman to become pregnant. A glycoprotein hormone secreted by the placenta in early pregnancy, and stimulating the corpus luteum within the…
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Human anatomy
The structure, shape and functions of the human body.
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Human
Referring to any man, woman or child.
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Huhner’s test
A test carried out several hours after sexual intercourse to determine the number and motility of spermatozoa [After Max Huhner (1873-1947), US urologist]. Postcoital examination of cervical mucus. Assessments include characteristics of the mucus as correlated with the phase of the woman’s menstrual cycle, and the number, morphology, motility, and ability of the sperm to…
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Hypoxanthine phosphoribosyl transferase (HPRT)
An enzyme that is lacking in children, usually boys, who have Lesch-Nyhan disease.
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House officer
A doctor who works in a hospital as a house surgeon or house physician during the final year of training before registration by the General Medical Council.
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House mite
A tiny insect living mainly in bedding and soft furnishings, that can cause an allergic reaction.