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Reproduction
| Term | Definition |
|---|---|
| Progesterone | It can prevent changes in the uterus in women taking estrogen after menopause. It can also treat menstrual periods that have stopped before menopause. |
| Estrogen | steroid hormones which promote the development and maintenance of female characteristics of the body. |
| Ovulation | discharge of ova or ovules from the ovary. |
| Implantation | the action of implanting or state of being implanted. |
| Uterus | the organ in the lower body of a woman or female mammal where offspring are conceived and in which they gestate before birth; the womb. |
| Cervix | the narrow passage forming the lower end of the uterus. |
| Vagina | the muscular tube leading from the external genitals to the cervix of the uterus in women and most female mammals. |
| Testosterone | a steroid hormone that stimulates development of male secondary sexual characteristics, produced mainly in the testes, but also in the ovaries and adrenal cortex. |
| Fetus | an unborn offspring of a mammal, in particular an unborn human baby more than eight weeks after conception. |
| Vas deferens | the duct which conveys sperm from the testicle to the urethra. |
| Semen | the male reproductive fluid, containing spermatozoa in suspension. |
| Fallopian tube | (in a female mammal) either of a pair of tubes along which eggs travel from the ovaries to the uterus. |
| Epidydimis | a system of ductules that emerges posteriorly from the testis, holds sperm during maturation |
| placenta | a flattened circular organ in the uterus of pregnant eutherian mammals, nourishing and maintaining the fetus through the umbilical cord. |
| menopause | the ceasing of menstruation. |
| Menstruation | the process in a woman of discharging blood and other materials from the lining of the uterus at intervals of about one lunar month from puberty until menopause, except during pregnancy. |
| cleavage | cell division, especially of a fertilized egg cell. |
| Differentiation | the action or process of differentiating. |
| Gestation | he process of carrying or being carried in the womb between conception and birth. |
| Embryo | an unborn or unhatched offspring in the process of development, in particular a human offspring during the period from approximately the second to the eighth week after fertilization (after which it is usually termed a fetus). |