[Campbell Biology P.1081] During which phase of the ovarian cycle does the uterine lining und... | Practice Question

During which phase of the ovarian cycle does the uterine lining undergo the most significant thickening in preparation for possible embryo implantation?

  • option_A: Follicular phase
  • option_B: Luteal phase
  • option_C: Ovulation
  • option_D: Menstrual flow phase

Explanation

The luteal phase of the ovarian cycle Days 14-28 corresponds to the secretory phase of the uterine cycle. During this phase, under the influence of progesterone and estradiol from the corpus luteum, the endometrium continues to thicken and develops a rich blood supply, making it ready for embryo implantation.