| Term | Definition |
| abortion | the premature expulsion of an embryo or fetus from the uterus before birth; if done legally by a trained physician, it is called terapeutic |
| abstinence | refraining from sexual intercourse |
| adolescence | the period between puberty (appearance of secondary sex characteristics) and adulthood (end of body growth) |
| amniocentesis | a procedure in which amniotic fluid is drawn from the amniotic sac surrounding the fetus and subjected to microscopic and analysis |
| anus | opening of the bowels, which carry solid waste to the outside of the body in males and females |
| bladder | the bodily organ that stores urine in males and females |
| cervix | the neck of the uterus located at the back of the vagina |
| chancre | a painless sore that appears in early syphilis, usually on the sex organs |
| circumcision | surgical removal of the foreskin of the penis |
| clitoris | a pea-size organ located above the opening to the vagina; whose nerve endings correspond to the head of the male penis |
| conception | when an ovum (egg) is penetrated by a sperm, resulting in the development of an embryo; impregnation, fertilization |
| condom | a rubber membrane sheath worn over the penis during sexual intercourse to cellect semen, prevent pregnancy, and to prevent the spread of venereal diseases |
| contraception (birth control) | a device or method which prevents the fertilization of an ovum by a sperm during sexual intercourse |
| Cowper's Glands | two tiny glands located below the prostate gland which release fluid before ejaculation to neutralize lining of urethra and provide proper pH balance for sperm. fluid can contain sperm. |
| diaphram | a rubber disx inserted into the vagina and over the cervix before intercourse to prevent sperm from entering the uterus |
| douche | a method of female hygiene in which a stream of water or other liquid solution is directed into the vagina |
| egg (ovum) | female reproductive cell produced in and released from the ovaries |
| ejaculation | the discharge of semen from the penis; occurs during male orgasm |
| embryo | a developing organism; during the first eight weeks of development in the uterus, a human being is called an embryo |
| erection | swelling and rising of the penis which occurs when the veins in the penis fill with blood |
| fallopian tubes | two 4-5" tubes in the female. the passageway is about as wide as a pencil head and is lined by tiny hair like cilia which move to cause the ovum to move from the outer part of the tube to the uterus |
| fertilization | (conception) a sperm entering an ovum and combining the chromosomes |