PHYSIOLOGY
REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If the woman is not pregnant, a fall in which hormone will cause the uterus lining to start shedding?
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oestrogen
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progesterone
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FSH
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LH
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Explanation:
Detailed explanation-1: -If pregnancy does not occur, estrogen and progesterone levels decrease. The decrease in progesterone triggers menstruation, or shedding of the lining.
Detailed explanation-2: -Progesterone levels are often low during the first stage (follicular stage) of your menstrual cycle. Ovulation is when the egg is released into the fallopian tube. After ovulation, progesterone levels go up for about 5 days before going back down.
Detailed explanation-3: -Progesterone then prepares the tissue lining of the uterus to allow the fertilised egg to implant and helps to maintain the endometrium throughout pregnancy.
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