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Estrogen
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pathways in the biosynthesis of steroid hormones Diagram of the menstrual cycle showing hormone levels, follicle development, and endometrial changes across 28 days. It highlights menstruation, ovulation, and the follicular and luteal phases, with labeled curves for estrogen, progesterone, FSH, and LH.
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pathways in the biosynthesis of steroid hormones
pathways in the biosynthesis of steroid hormones Major pathways involved in the biosynthesis of steroid hormones.

Estrogen

hormone
Also known as: oestrogen
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ā€¢History

Estrogen, any of a group of hormones that primarily influence the female reproductive tract in its development, maturation, and function. There are three major hormonesā€”estradiol, estrone, and estriolā€”among the estrogens, and estradiol is the predominant one. The major sources of estrogens are the ovaries and the placenta (the temporary organ that serves to nourish the fetus and remove its wastes); additional small amounts are secreted by the adrenal glands and by the male testes. It...

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