Human Reproduction
Vocab
"All change is a miracle to contemplate; but it is a miracle which is taking place every instant."

--Henry David Thoreau Walden

endometrium uterine lining

estrogen any of several major female sex hormones produced by the ovarian follicles.

gonads any organ or gland where gametes are produced; a testis or an ovary.

menarche the first menstrual period.

myometrium the muscular wall of the uterus.

secondary sex characteristics characteristics brought on with the advent of puberty.

testosterone male sex hormone secreted by the testes.

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