EMBRYOLOGY
FEMALE SEX GLAND OVARIES ÖOGENESIS AND MENSTRUAL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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FSH
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LH
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Estrogen
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Progesterone
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Detailed explanation-1: -The hypothalamus secretes GnRH in a pulsatile fashion, which triggers FSH and LH release from the anterior pituitary. These, in turn, act on the granulosa and theca cells in the ovary to stimulate follicle maturation and trigger ovulation.
Detailed explanation-2: -Ovulation is spontaneously triggered about 36-40 hours after blood levels of a hormone called luteinizing hormone (LH) rise. This is called the LH surge. Once released from the ovary, the egg is picked up by and travels down the fallopian tube where it can meet sperm to become fertilized.
Detailed explanation-3: -In women, ovulation of mature follicles on the ovary is induced by a large burst of LH secretion-the preovulatory LH surge. Residual cells within ovulated follicles proliferate to form corpora lutea, which secrete the steroid hormones-progesterone and estradiol.