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