During this phenomenon (arrow mark), changes in hormone levels noted are,
Ans. (d) Increased estrogen, decreased progesterone(Ref: Ganong, 25th ed/p.403)LH surge happen 24 - 36 hrs before ovulationAt that time, there is increased estrogen, decreased progesterone.
Increased estrogen, increased progesterone
Decreased estrogen, increased progesterone
Decreased estrogen, decreased progesterone
Increased estrogen, decreased progesterone
Endocrinology and Reproduction