Gynaecology & Obstetrics Reproductive physiology and hormones in females d828256b

Ovulation occurs :

Before LH surge

After biphasic rise in body temperature

After ripening of follicle by FSH

Before estrogen peak

High-Yield Explanation

Ovulation After estradiol reaches a peak of 200pg/ml and is sustained for about 48 hours, it exes a possitive feedback action for LH surge Final maturation of follicle is obtained by combined effect of FSH and LH Ovulation occurs 24-48 hours after LH surge Ref: D.C. Dutta's Textbook of Gynaecology, 6th edition, page no: 93

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