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A&P CH19 key terms
A&P CH19 Reproductive Systems
| Term | Definition |
|---|---|
| androgen | male sex hormones |
| contraception | birth control |
| ejaculation | process of expelling semsn from the male reproductive tract |
| emission | the movement of sperm cells from the vas deferens into the ejaculatory duct and urethra |
| estrogen | hormone that stimulates the development of female secondary sex characteristics |
| gonadotropin | a hormone that stimulates activity in the gonads |
| meiosis | cell division that halves the genetic material, resulting in egg and sperm cells (gametes) |
| menopause | termination of the menstrual cycle |
| menstrual cycle | monthly female reproductive cycle |
| oogenesis | differentiation of an egg cell |
| orgasm | the culmination of sexual excitement |
| ovulation | the release of an egg cell from a mature ovarian follicle |
| primary follicle | primordial follicle that begins to mature in response to hormonal changes in a female at puberty |
| progesterone | a female hormone that the corpus luteum and placenta secrete |
| puberty | state of development in which the reproductive organs become functional |
| semen | fluid containing sperm cells and secretions discharged from male reproductive tract at ejaculation |
| spermatogenesis | process by which sperm cells are formed |
| testosterone | male sex hormones that the interstitial cells of the testes secrete |
| zygote | cells produced when an egg and a sperm fuse; fertilized egg cell |