1. MENSTRUAL CYCLE

2. Menstruation Major stage of puberty (age 12-13)
From the beginning of one period to the beginning of the next takes about 28 days for most people (can differ)

3. DAY 1 - 5 First day of menstrual period
Blood and tissues that have built up on the inner lining of the uterus flow of out of the vagina
Last anywhere between 2-7 days
After menstruation, the body begins releasing hormones that signal the uterus to get ready to receive a new egg ( 1/10 of a poppy seed)

4. DAY 6 - 13 Hormones prepare an egg to be released from the ovary
Lining of uterus thickens and becomes rich in blood and nutrients in case a sperm fertilizes the egg
The fertilized egg would then attach to the lining

5. DAY 14 Middle of the cycle ovulation occurs
Ovulation is when the egg is released from one of the ovaries.
During this time the egg will travel down the fallopian tube

6. Day : Ovulation
BEFORE ovulation – estrogen is released to stimulate the uterus to build the lining with extra blood and tissue to prepare for pregnancy
If the egg is fertilized by the sperm cell it travels to the uterus and attaches

7. DAY 15-28 Most of the time the egg is not fertilized
If the egg is not fertilized the egg will begin to dissolve
Then the uterus no longer needs the extra blood and tissue
Then the menstrual cycle starts over again

8. Women may experience… Fluid retention Cramping Mood swings Weight gain
Breast tenderness
Diarrhea
Constipation

10. Hormones FSH – Follicle Stimulation Hormone
LH - Luteinizing hormone LH – signals ovulation
Estrogen – produced throughout the menstrual cycle
Progesterone – produced during second half of cycle – contributes to thickening of the endometrium which is shed during the menstrual phase if fertilization does not take place
- Produced in the pituitary gland
-Produced by the follicles in the ovaries

12. High Level of Progesterone
Indicates that a woman is pregnant
High level of progesterone keep the uterus lining thick to provide support for the fetus.

13. Self-Research
You are expected to search for the answer to any questions in the worksheet not covered in this powerpoint.