F8 Flashcards
Why are there unequal cell divisions in oogenesis?
Ensures oocyte has ample nutrients for its journey to the uterus.
Phases of the ovarian cycle:
Follicular phase
Ovulation
Luteal phase
Follicular phase
Days 1-14;
Rising levels of FSH stimulate follicular development
Ovulation
Day 14;
Rising levels of LH causes follicle to rupture, expelling oocyte
Luteal phase
Days 14-28;
Ruptured follicle becomes corpus luteum
Corpus luteum
Produces progesterone;
Causes endometrium to engorge with blood and nutrients in preparation for implantation.
If implantation does not occur _______ is shed.
Stratum functionalis
During what phase are hormone levels the lowest?
Menstrual phase;
Days 1-5
How do estrogen and progesterone alter the viscosity of cervical mucus?
Thins out the normally thick, sticky cervical mucus to facilitate sperm passage.