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Human Reproduction — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYHuman Reproduction5 Marks
Question
What is menstrual cycle? Which hormones regulate menstrual cycle?
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Answer

Menstrual cycle is the cyclic change (itf' the reproductive tract of primate female. This period is marked by a characteristic event repeated almost every month (28 days with minor variation) in the form of a menstrual flow (i.e shedding of the endometrium of the uterus with bleeding). It may be temporarily stopped only in pregnancy.
The hormones that regulates menstrual cycles are:
  1. FSH (Follicle stimulating hormone).
  2. LH (Luteinizing hormone).
  3. Oestrogens.
  4. Progesterone.

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