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Onset of pregnancy :    
  • a)
    Stimulates testosterone secretion    
  • b)
    Inhibits further ovulation    
  • c)
    Leads to degeneration of ovary    
  • d)
    Leads to menstrual flow
Correct answer is option 'B'. Can you explain this answer?
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Onset of pregnancy : a)Stimulates testosterone secretion b)Inhibits fu...
Explanation:
The onset of pregnancy is a complex process that involves various changes in the female reproductive system. One of the most important changes that occur during pregnancy is the inhibition of further ovulation. This is necessary to ensure that the developing fetus is not disturbed and the pregnancy is successful. Let's understand the process in detail.

Inhibition of Further Ovulation:
During pregnancy, the fertilized egg implants itself in the lining of the uterus. This triggers the release of hormones such as progesterone and estrogen, which help to maintain the pregnancy. The high levels of these hormones in the blood signal the brain to stop the production of follicle-stimulating hormone (FSH) and luteinizing hormone (LH). These hormones are responsible for the growth and maturation of the ovarian follicles and the release of the egg during ovulation. As a result, no new follicles are formed, and ovulation is inhibited. This ensures that the female does not get pregnant while she is already carrying a fetus.

Other Changes:
Apart from inhibiting ovulation, pregnancy also brings about other changes in the female reproductive system. These changes include:

- Thickening of the cervical mucus: The cervical mucus becomes thick and sticky during pregnancy, making it difficult for sperm to enter the uterus and fertilize the egg.
- Growth of the uterus: The uterus grows in size to accommodate the developing fetus. This growth is supported by the high levels of estrogen and progesterone in the blood.
- Development of the placenta: The placenta is a specialized organ that develops during pregnancy. It acts as a bridge between the mother and the fetus, providing nutrients and oxygen to the developing fetus and removing waste products.

Conclusion:
In conclusion, the onset of pregnancy inhibits further ovulation. This is necessary to ensure that the developing fetus is not disturbed and the pregnancy is successful. The high levels of hormones such as progesterone and estrogen in the blood signal the brain to stop the production of FSH and LH, which are responsible for ovulation.
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Community Answer
Onset of pregnancy : a)Stimulates testosterone secretion b)Inhibits fu...
During menstruation cycle, rapid secretion of LH induces rupture of Graafian follicle and thereby the release of an ovum (ovulation). The ovulation (ovulatory phase) is followed by the luteal phase during which the remaining parts of the Graafian follicle converts into the corpus luteum if fertilization occurs. The corpus luteum secretes large amounts of progesterone which maintains the events of pregnancy. During pregnancy, all events of the menstrual cycle stop and there is no menstruation and ovulation

So, the correct answer is 'Inhibits further ovulation'
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Onset of pregnancy : a)Stimulates testosterone secretion b)Inhibits further ovulation c)Leads to degeneration of ovary d)Leads to menstrual flowCorrect answer is option 'B'. Can you explain this answer?
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