Question

What are the 3 phases of the ovarian cycle?

Answer 1

Ovarian cycles:

1. The ovarian cycle is a series of events that occur during the menstrual cycle, such as follicle development, ovulation, and corpus luteum formation.
2. It occurs in the cortex of the ovaries.
3. The three stages of the ovarian cycle are:

Follicular phase

1. This is the proliferative phase.
2. This is the first stage after menstruation.
3. At this stage, the primary follicle grows and develops into a Graffian follicle.
4. The endometrium also regenerates after proliferation.

Ovulatory phase

1. Follicles are released by the rupture of Graffian follicles.
2. LH surge causes metaphase ovulation.

Luteal phase –

1. After ovulation, the luteal phase begins.
2. Also called the secretory phase.
3. The ruptured Graffian follicle turns into the corpus luteum.
4. The corpus luteum secretes progesterone, which is needed to maintain pregnancy
5. If fertilization does not occur, the corpus luteum degenerates, degeneration of endometrium, and the start of menstruation.