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Human Reproduction question

2013 · Q20
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Human Reproduction question

2013 · Q20

NEETBiologyHuman ReproductionMCQ+4 / −1
Menstrual flow occurs due to lack of :
  1. A
    Progesterone
  2. B
    FSH
  3. C
    Oxytocin
  4. D
    Vasopressin
View written solutionFree

Correct answer: A

The corpus luteum secretes large amounts of progesterone which is essential for maintenance of the endometrium necessary for implantation of the fertilized ovum and other events of pregnancy. In the absence of fertilization, the corpus luteum degenerates. This causes disintegration of the endometrium leading to menstruation. The menstrual flow results due to breakdown of endometrial lining of the uterus and its blood vessels which forms liquid that comes out through vagina.

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