Question

The hormone that maintains the thickening of the endometrium during pregnancy is ______.

Options

• Oestrogen

• ACTH

• Progesterone

• Oxytocin

Answer 1

The hormone that maintains the thickening of the endometrium during pregnancy is progesterone.

Explanation:

Progesterone is the hormone responsible for maintaining the thickened endometrium (uterine lining) during pregnancy. It ensures that the lining remains suitable for the implantation and nourishment of the embryo. If progesterone levels drop, the endometrial lining breaks down, leading to menstruation. Hence, during pregnancy, progesterone helps sustain the uterine environment for fetal development.