Ovarian Cycle

Menstrual phases (menses)

- 1 to 5 days - sloughing off the thick layer of the lining of the uterus - bleeding

Secretory phase

- 15 to 28 days - progesterone causes the vascular supply to the endometrium to increase

Proliferative

- 6 to 14 days - estrogen causes the endometrium to repair - ovulation occurs at the end of this stage

Follicular phase occurs during days

1-14

Ovulation takes place on the _____

14th day of a 28 day cycle

If fertilization occurs the ____________________ must be prevented from degenerating.

Corpus Luteum

Two hormones, involved in the ovarian cycle which are released by the ovary are the ________ and _________.

Estrogen, Progesterone

The ovarian cycle begins at puberty with the release of

Follicle Stimulating Hormone (FSH)

______________________ is released by the developing embryo for the first three months.

Human Chorionic Gonadotropin (HCG)

1. Menstrual phase 2. Proliferative phase 3. Secretory phase

Menstrual cycle

corpus luteum

Produces estrogen and progesterone after the release of the ova

ovulation

The development and release of an ova

corpus albicans

The regressed form of the corpus luteum

in the final stage of the ovarian cycle, if a corpus lutem is not fertilized, it becomes :

corpus albicans

During the luteal phase, the remaining cells in the ruptured vessicle follicle a _________ forms

corpus lutem

If the ovum is not fertilzed during the Luteal phase,

it will degenerate

During the follicullar phase the _________

primary follicle develops into a secondary follicle within a vesscular follicle

What stimulates the vesicular follicles to continue to grow during the follicular phase of each ovarian cycle?

rising levels of FSH

During the ovulation involves

the release of the second follicle

as corpus lutem degenerates, its levels of estrogen and progesterone drop causing

the uterine lining to shed- which is the menstrual cycle

What must occur for the ova to complete its second mitotic division?

Fertilization

ovarian cycle

The 28 days of the menstrual cycle as they apply to events in the ovary. The ovarian cycle has three subphases: 1. the follicular phase 2. ovulation 3. the luteal phase