The luteal phase of the menstrual cycle is the period
- A. of menstruation itself
- B. before the follicle begins to grow
- C. between ovulation and the start of the next menstruation
- D. during which the egg is fertilised
Explanation
After ovulation the corpus luteum secretes progesterone for about fourteen days, the luteal phase. If no embryo implants, the corpus luteum degenerates, hormone levels fall and menstruation begins.