Question

166. In a fertile females, surge of which hormone occurs
twice during a single menstrual cycle?
(1) Progesterone
(2) FSH
(3) LH
(4) Estrogen​

Answer 1

Answer:

estrogen.....................

Answer 2

4. Estrogen

Explanation:

A series of changes that occur on the endometrial lining of the uterus when it prepares for the arrival of the fertilized ovum that will develop there until birth is called Menstrual cycle.

Menstrual cycle is a 28 days cycle that has been divided into three phases:

Menstrual phase, Proliferative phase and Secretory phase.

Estrogens are one of the important hormones that are involved in the regulation of menstrual cycle.

Estrogen upsurge is observed twice during one menstrual cycle:

First upsurge is seen preovulatory phase and the second upsurge is seen during mid luteal phase when corpus luteum is already formed.