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Human Reproduction

Question
CBSEENBI12002796
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Withdrawal of which of the following hormones is the immediate cause of menstruation?

  • Eastrogens

  • FSH

  • FSH-RH

  • Progesterone

Solution

D.

Progesterone

Menstruation is caused by the reduction of estrogen and progesterone, especially progesterone at the end of monthly ovarian cycle. The first effect is decreased stimulation of the endometrial cells by these two hormones followed rapidly by involution of the endometrium itself to about 65% of its previous thickness.

Some More Questions From Human Reproduction Chapter

Sertoli cells provide :

The middle piece of human sperm contains :

Seminiferous tubules open into vasa efferentia through :

Polar bodies are produced during the process :

In 28 days woman's menstrual cycle, ovulation occurs on :

Scrotum communicates with abdominal cavity through :

How many spermatozoa or sperms are present in human ejaculate ?

Acrosome is a part of:

Humans are :

Menstrual cycle occurs in :

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