In days 5-13 of a 28-day cycle, FSH supports growth of several ovarian sacs and one dominant one matures before any oocyte is released. Which ovarian phase is this?

Around day 14, a mature ovarian sac ruptures and a secondary oocyte leaves the ovary for the uterine tube. Which ovarian-cycle phase is occurring?

By day 18, the emptied sac has become a yellow endocrine body that secretes high progesterone. Which ovarian-cycle phase is this?

At the start of a cycle, several ovarian sacs enlarge and granulosa cells produce rising estrogen before the midcycle LH spike. Which ovarian phase is underway?

A midcycle LH surge causes the mature sac wall to split, and the secondary oocyte exits within about 24-36 hours. Which ovarian-cycle phase does this describe?

Late in the cycle, the yellow endocrine body shrinks toward a corpus albicans because no embryo has implanted. Which ovarian phase is ending?

During days 15-28, temporary endocrine tissue in the ovary produces more progesterone than estrogen. Which ovarian-cycle phase is this?

A sharp hormone surge near day 14 triggers rupture of the mature ovarian sac and release of the secondary oocyte. Which hormone surges then?

Early in the cycle, one anterior pituitary hormone promotes granulosa-cell growth in ovarian sacs before release. Which hormone does this?

After menstrual bleeding, a rising ovarian hormone drives mitosis in the functional layer so the lining rebuilds. Which hormone has this main effect?

After the oocyte is released, a hormone from the yellow endocrine body makes glands in the lining coil and secrete nutrient-rich fluid. Which hormone is it?

Pulses from the hypothalamus signal the anterior pituitary to secrete FSH and LH during the cycle. Which hypothalamic hormone provides that signal?

High estrogen from the dominant ovarian sac just before day 14 switches to positive feedback on the pituitary. Which hormone then rises sharply?

While the ovary is in its early pre-release phase and estrogen is climbing after bleeding, what happens to the uterine lining over the same days?

At the time the secondary oocyte leaves the ovary, which uterine phase is ending under the influence of rising estrogen?

While the yellow endocrine body is active after oocyte release, which uterine phase is maintained by high progesterone?

On day 1, ovarian hormone levels are low and a new cohort of ovarian sacs begins to respond to FSH. What is the uterus doing then?

Around day 21, the post-release ovarian phase is at peak progesterone. How is the endometrium functioning at the same time?

When a dominant ovarian sac is producing high estrogen just before the LH surge, which uterine phase matches those same days?

No implantation occurs, so the yellow endocrine body degenerates and estrogen and progesterone drop. What follows in the uterus within a few days?

Progesterone falls late in the cycle. What happens to the spiral arteries supplying the functional layer?

When estrogen and progesterone fall at the end of the cycle, negative feedback on the anterior pituitary decreases. What happens to FSH?

A drop in progesterone removes support for the secretory endometrium. What happens to gland activity in that layer?

If hCG does not rise because no implantation occurred, what happens to the corpus luteum?

When ovarian estrogen and progesterone are low on day 1 instead of maintaining the late-cycle lining, which uterine phase begins?