Question

During the proliferative phase of the menstrual cycle,

A) the corpus luteum is forming.
B) the old functional layer is sloughed off.
C) the functional zone of the endometrium is restored.
D) the fertilized ovum implants.
E) all of the above

Answer 1

During the proliferative phase of the menstrual cycle, the functional zone of the endometrium is restored through the thickening of the endometrial lining.

Step-by-step explanation:

The proliferative phase of the menstrual cycle is the phase during which the functional zone of the endometrium is restored. This phase occurs after the menstrual flow ceases and is characterized by the thickening of the endometrial lining. The rising estrogen levels, secreted by the follicles, stimulate the endometrium to rebuild.