What structure is involved in hormone production after ovulation?

What structure is involved in hormone production after ovulation?

• A. Functioning corpus luteum
• B. Follicle
• C. Ovulated egg
• D. Anterior pituitary gland

Answer: (A)

After ovulation, the structure that is primarily responsible for hormone production is the functioning corpus luteum. Once an egg is released from the ovary during ovulation, the remnants of the ovarian follicle transform into the corpus luteum. This structure plays a crucial role in the menstrual cycle by producing hormones, particularly progesterone and some estrogen, which are essential for preparing the uterine lining for potential implantation of a fertilized egg.

The secretion of progesterone by the corpus luteum is vital for maintaining the endometrium in the early stages of pregnancy. If fertilization does not occur, the corpus luteum eventually degenerates, leading to a decrease in these hormone levels and the onset of menstruation.

Other options contribute differently in the context of the menstrual cycle and hormone regulation. The follicle is the immature structure that releases the egg, but it does not secrete hormones after ovulation. The ovulated egg itself is not involved in hormone production; rather, it is the corpus luteum that forms as a result of the follicle's transformation. The anterior pituitary gland, while vital in the regulation of the menstrual cycle through the secretion of luteinizing and follicle-stimulating hormones, does not directly produce hormones after ovulation.