In above graph (i), (ii) and (iii) respectively shows which of the following hormones?
A
Estrogen, LH, Testesterone
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B
LH, Estrogen, Progesterone
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C
Estrogen, LH, Progesterone
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D
Progesterone, LH, Estrogen
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Solution
The correct option is B
LH, Estrogen, Progesterone In the given graph, 1 and 2 are estrogen and progesterone respectively. The level of estrogen and progesterone is reduced in the menstrual phase, in follicular phase level of estrogen increases and in luteal phase level of progesterone increases.
Levels of LH are low for most of the monthly menstrual cycle. However, around the middle of the cycle, when the developing egg reaches a certain size, LH levels surge to become very high.
Estrogen levels rise and fall twice during the menstrual cycle. Estrogen levels rise during the mid-follicular phase and then drop precipitously after ovulation.