A number of hormonal changes occur in a woman’s body during the menstrual cycle - Scottish Highers Human Biology - Question 7 - 2022
Question 7
A number of hormonal changes occur in a woman’s body during the menstrual cycle.
(a) (i) State one function of each of the following hormones in the menstrual cycle... show full transcript
Worked Solution & Example Answer:A number of hormonal changes occur in a woman’s body during the menstrual cycle - Scottish Highers Human Biology - Question 7 - 2022
Step 1
State one function of FSH in the menstrual cycle.
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Answer
FSH stimulates the development and maturation of the ovarian follicles or induces the production of oestrogen by the follicles.
Step 2
State one function of Oestrogen in the menstrual cycle.
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Answer
Oestrogen stimulates the repair and thickening of the endometrium to prepare for implantation.
Step 3
Name the structure within an ovary that produces progesterone.
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Answer
Corpus luteum.
Step 4
Explain how taking this pill would affect the FSH concentrations in her blood during her menstrual cycle.
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Answer
Taking the pill reduces FSH concentrations due to negative feedback inhibition on the pituitary gland, preventing FSH from increasing throughout the menstrual cycle.
Step 5
Explain why menstruation usually occurs during the days that the woman takes the inactive pills.
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Menstruation occurs during the inactive pills because the body experiences a drop in hormone levels, particularly progesterone and oestrogen, which triggers the shedding of the uterine lining.
Step 6
Explain how this type of pill prevents pregnancy.
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Answer
The morning after pill prevents pregnancy by delaying ovulation, thereby preventing fertilization.
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