Which of the following sequence is correct?
Correct answer: D. FSH → Estrogen → LH → Progesterone
- A. LH → FSH → Estrogen → Progesterone
- B. FSH → LH → Progesterone → Estrogen
- C. FSH → Estrogen → Progesterone → LH
- D. FSH → Estrogen → LH → Progesterone
Explanation
[A] FSH is produced in the start in menstrual cycle not LH[B] FSH stimulates the production of Estrogen[C] LH is produced first before progesterone[D] In the start of the menstrual cycle FSH (Follicle Stimulating Hormone)is released during the beginning stimulating the production of Oestrogen from ovaries that vascularise the endometrium and then decrease in FSH and increase in Estrogen Produces LH and after Ovulation corpus Luteum secretes Progesterone.
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
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About Menstrual Cycle
The menstrual cycle covers the coordinated changes in the ovaries and uterus, including menstruation, follicular growth, ovulation and corpus luteum formation. It links follicle-stimulating hormone, luteinizing hormone, oestrogen and progesterone with endometrial changes, and distinguishes the ovarian cycle from the uterine cycle and the hormonal events of pregnancy.
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FSH stimulates the production of oestrogen hormone which has two targets _; and _: