Question:

Atretic follicles are found in the

Updated On: Jul 28, 2022
  • fallopian tubes
  • uterus
  • labia majora
  • ovary
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The Correct Option is D

Solution and Explanation

Atretic follicles are found in the ovary. The ovary of an adult female has about $120,000-160,000$ follicles. Out of which, only one ovarian follicle matures every $28$ days alternatively by the two ovaries. The rest of them degenerate at different times. These are known as atretic follicles and the degeneration process is called follicular atresia.
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Concepts Used:

Female Reproductive System

The female reproductive system provides various functions. The ovaries produce the egg cells known as the ova or oocytes. The oocytes are then taken to the fallopian tube where fertilization by a sperm may occur. The fertilized egg is then transferred to the uterus, where the uterine lining has thickened in regard to the normal hormones of the reproductive cycle. Once in the uterus, the fertilized egg can implant into the thickened uterine lining and continues to develop. If implantation does not take place, the uterine lining is shed as menstrual flow. In addition, the female reproductive system produces female sex hormones that preserve the reproductive cycle.

During menopause, the female reproductive system slowly stops making the female hormones that are required for the reproductive cycle work. At this stage, menstrual cycles can become irregular and finally stops. One year after menstrual cycles pause, the woman is deemed to be menopausal.