In the human menstrual cycle, the remaining parts of the Graafian follicle transform into the corpus luteum during the :

Step-by-step solution

During the human menstrual cycle, ovulation occurs when the mature Graafian follicle ruptures to release the ovum. Following ovulation, the cycle enters the luteal phase (also known as the secretory phase). During this phase, the remaining parts of the ruptured Graafian follicle transform into a yellow glandular mass called the corpus luteum. The corpus luteum secretes large amounts of progesterone, which is essential for the maintenance of the endometrium for a potential pregnancy. Answer: Luteal phase