Category: I

A protein that may be a hormone and that may inhibit secretion of the follicle-stimulating hormone (FSH). A female hormone whose level rises as luteinizing hormone (LH) and follicle-stimulating hormone (FSH) levels fall. It rises in concert with progesterone. Its function in the estrus cycle is unclear. A hormone produced by the testicles. Inhibin works…

A condition or trait that is passed from parents to offspring by way of the genes or chromosomes. Passed on from a parent through the genes. Body traits and genetic makeup received as a result of genetic transmission rather than acquired.  

A physiological state that renders some people, with or without antibodies, immune to certain infections.  

The passageway from the abdominal cavity to the scrotum in the male through which the testicles descend shortly before birth or just after birth. A passage in the lower abdominal wall, carrying the spermatic cord in the male and the round ligament of the uterus in the female. Either of a pair of openings that…

A social group with which a person identifies and to which a person feels close, out-group.  

Manipulating another person by making oneself seem likable.  

Used in diagnosing the cause of erectile dysfunction in men, the injection of the genitals with radioactive substances to monitor blood flow.  

A funnel-like outgrowth from the ventral wall of the diencephalon. Any part of the body shaped like a funnel, especially the stem which attaches the pituitary gland to the hypothalamus. Infundibula, funnel- shaped part, especially the part of the brain (the hypophyseal stalk) that connects to the hypothalamus and pituitary gland. Any funnel-shaped channel or…

An encroachment or invasion of one’s rights.  

A relatively long biological cycle.