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Ovarian Menstrual Cycle:
When does it begin
- a. Begins at puberty
- i. Once a month cycle (use month loosely= cycles are like 28 days, but other days may be 26 or 33)
- 1. Must be consistency
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Ovarian Menstrual Cycles:
__ cycles go on at the same time at different places
What are they
- 2
- ovarian
- menstrual (uterine)
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Ovarian Cycle:
Location:
What it does:
- 1. Takes place in ovaries and is where the primary oocyte reinitiates meiosis I
- a. Complete meiosis I and begin meiosis II as the secondary oocyte, which will be released from the ovary in a process called ovulation
- It now can be fertilized
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Ovarian cycle
Objective
1. Objective: to get the primary oocyte to mature sufficiently that it can be ovulated, released from the ovary and into the fallopian tube
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Ovarian cycle:
what does it include?
- 1. Also includes the follicle cells of some of the follicles producing mostly estrogen initially and later progesterone
- a. Follicle cells produce female hormones throughout ovarian cycle
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Ovarian Cycle
Characteristic of: __
- 1. human and apes
- a. Many mammals do not have an ovarian menstrual cycle= they have an estrous cycle
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Menstrual Cycle:
Location and start:
- 1. Occurs in uterus and begins with menses, which is bleeding and which is sloughing off of most of endometrium that was made the month before
- a. Most is sloughing off
- i. Inner layer of uterus
- 1. Glandular epithelial layer
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Menstrual Cycle:
In terms of endometrium
- 1. Renewal of endometrium to its maximum height
- a. Process it renews is mitosis
- 2. Depending on whether or not fertilization occurs, menses will or will not occur
- a. If there is a pregnancy, menses will not occur because in that endometrium is the fertilized egg
- i. If it sloughs off, the embryo goes with it
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I. Ovarian Menstrual Cycle Hormones
a. __controlled by hormones from the __
- Gametogenesis
- anterior pituitary
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Ovarian: in __
Includes: __
Changes in primary follicle?
- i. ovary
- 1. Includes changes in immature follicle that leads to maturation of a fertilizable cell
- 2. Changes in primary follicleà matureà in hopes of fertilization
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Menstrual: in __
Starts with:
Endometrium:
Fertilization?
- i. Menstrual: in uterus
- 1. Starts with menses
- a. Shedding of endometrium from month before
- i. Rebuilding of the lining (endometrium) to prepare for a new fertilized egg
- 2. If fertilization doesn’t occur, it starts shedding again
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