ACTIVITY 8: NEGATIVE FEEDBACK IN THE MENSTRUAL CYCLE

Ovulation happens exactly at the middle of the total length of the menstrual cycle. If a woman's length of her menstrual cycle is 28 days, ovulation will happen on the 14th day. If the menstrual cycle length is 32 days, ovulation will happen on the 16th day.
 
    The most fertile day of a woman is during her ovulation day. This is the day the woman is more likely to get pregnant if she had intercourse with her husband.

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Analyze the interaction of hormones in the diagram below. Use the green numbers as your guide.

1

11

2

5

4

12

7

6

10

9

8

3

ACTIVITY _____: MENSTRUAL CYCLE Name: Sec on: Objec ves: Describe the important events of the menstrual cycle using diagram, Explain how the nega ve feedback mechanism works during menstrual cycle. Vocabulary: Endometrium – internal lining of the uterus Follicle – sac-like structures containing an immature egg which is found inside the ovary. Feedback mechanism - The process