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Menstruation

The female ovary produces eggs every month and the uterus also prepares itself to receive the fertilized egg .

These preparations include:

  1. The uterus lining becomes thick and spongy.
  2. It becomes enriched with blood and tissue in order to nourish the embryo.

THE LINING BREAKS DOWN WHEN THE EGG IS NOT FERTILIZED - Teachoo.jpg

(from LS)

  • However, if the egg is not fertilized, the lining is not needed anymore. 
  • The unfertilized egg too lives for just one day. 
  • After that, this lining slowly breaks and comes out of the vagina in the form of blood and mucus.
  • It is a cyclic process which occurs every month and lasts for 2-8 days . This whole process is known as menstruation .
  • The menstrual cycle begins once a girl hits puberty at the age of about 10-12 years.
  • Menstruation stops temporarily when a girl gets pregnant.

THE LINING BREAKS DOWN WHEN THE EGG IS NOT FERTILIZED - Teachoo.jpg

 

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Transcript

THE LINING BREAKS DOWN WHEN THE EGG IS NOT FERTILIZED THICK LINING FORMED INSIDE UTERUS IN ORDER TO RECEIVE FERTILIZED EGG

CA Maninder Singh's photo - Co-founder, Teachoo

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CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Economics, Accounting and English at Teachoo