Question

The secretory phase of the uterine cycle coincides with

A) Ovulation
B) The luteal phase of the ovarian cycle
C) Proliferation
D) The follicular phase of the ovarian cycle
E) Menstruation"

Answer 1

The secretory phase of the uterine cycle coincides with b) the luteal phase of the ovarian cycle, which takes place post-ovulation from about day 15 to 28, characterized by the production of hormones from the corpus luteum that prepare the uterine lining for potential implantation.

Step-by-step explanation:

The secretory phase of the uterine cycle coincides with B) The luteal phase of the ovarian cycle.

During this phase, which runs from about day 15 to 28, the corpus luteum that forms from the ruptured follicle after ovulation produces significant levels of estrogen and progesterone. These hormones promote changes in the uterus lining, preparing it for potential implantation of a fertilized egg. This process includes an increase in uterine secretions and blood flow to the uterus, making the endometrium more receptive to implantation. Meanwhile, progesterone also inhibits the release of further follicle-stimulating hormone (FSH) and luteinizing hormone (LH), preventing the development of additional eggs and follicles.