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Science Vocabulary11

Science Words To Learn

TermDefinition
1. Progesterone a steroid hormone released by the corpus luteum that stimulates the uterus to prepare for pregnancy.
2.Estrogen any of a group of steroid hormones which promote the development and maintenance of female characteristics of the body.
3.Ovulation discharge of ova or ovules from the ovary.
4.Implantation the stage of pregnancy at which the embryo adheres to the wall of the uterus.
5. 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.
6. Cervix- the narrow passage forming the lower end of the uterus.
7. Vagina the muscular tube leading from the external genitals to the cervix of the uterus in women and most female mammals.
8.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.
9.Fetus an unborn offspring of a mammal, in particular an unborn human baby more than eight weeks after conception.
10. Vas deferens the duct which conveys sperm from the testicle to the urethra.
11. Semen the male reproductive fluid, containing spermatozoa in suspension.
12. Oviduct/Fallopian tube the tube through which an ovum or egg passes from an ovary.
13. Epididymis a highly convoluted duct behind the testis, along which sperm passes to the vas deferens.
14. Placenta a flattened circular organ in the uterus of pregnant eutherian mammals, nourishing and maintaining the fetus through the umbilical cord.
15. Menopause the ceasing of menstruation.
16. 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.
17. Cleavage a sharp division; a split.
18. Differentiation The normal process by which a less specialized cell develops or matures to become more distinct in form and function
19. Gestation The period of development of the young in viviparous animals, from the time of fertilization of the ovum until birth.
20. 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).
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