NEET BIOLOGY

Detailed explanation-1: -Your corpus luteum is inside your ovaries, where the dominant follicle used to be.

Detailed explanation-2: -Your ovaries make most of your estrogen during your reproductive years. Your adrenal glands (the glands on your kidneys) and adipose tissue (body fat) secrete estrogen, too. The placenta (the organ that allows nutrient-sharing between parent and fetus) secretes estrogen during pregnancy.

Detailed explanation-3: -What happens during the luteal phase? The luteal phase begins after you ovulate. The dominant follicle that releases an egg at ovulation changes into a structure called the corpus luteum. The corpus luteum produces progesterone, along with some estrogen.

Detailed explanation-4: -If the egg is not fertilized, the corpus luteum degenerates and no longer produces progesterone, the estrogen level decreases, the top layers of the lining break down and are shed, and menstrual bleeding occurs (the start of a new menstrual cycle).