Question

During the menses,

A) progesterone levels are high.
B) a new uterine lining is formed.
C) secretory glands and blood vessels develop in the endometrium.
D) the old functional layer is sloughed off.

Answer 1

During the menses phase, the old functional layer of the endometrium is sloughed off.

Step-by-step explanation:

The menses phase of the menstrual cycle is when the lining of the uterus is shed, resulting in menstruation. During this phase, the levels of progesterone and other hormones decrease, which triggers the shedding of the endometrial lining. The old functional layer of the endometrium is sloughed off through the vagina, resulting in bleeding.

Answer 2

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Step-by-step explanation:

In the menstrual or bleeding phase of the menstrual cycle,

Reduced level of LH (Luteinizing hormone) causes regression of corpus luteum by the process of autolysis and this results in the consequent fall the level of progesterone in the blood.

The uterine lining fies due to the deficiency of progesterone and is sloughed off.