What female structure is analogous to the male penis?
The clitoris
500
What happens during the secretory phase of the uterine cycle, and why does it happen?
Secretory glands and blood vessels develop in the endometrium in order to support [the potential of] a growing embryo.
500
Explain how the function of estrogen changes during the follicular phase of the ovarian cycle.
Estrogen levels begin low and have a negative feedback relationship with LH and FSH, but once estrogen levels rise enough, it switches to having a positive feedback relationship with FSH and LH.