PHYSIOLOGY
REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the egg dies
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the egg leaves the body when the uterus lining is shed
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both
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None of the above
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Detailed explanation-1: -If fertilization does not occur, the endometrium, coupled with blood and mucus from the vagina and cervix (the lower, narrow part of the uterus located between the bladder and the rectum) make up the menstrual flow (also called menses) that leaves the body through the vagina.
Detailed explanation-2: -If the egg cell is not fertilized, it dies. At the end of the cycle some blood vessels in the mucous membranes of the uterus open up for some time, and the uppermost mucous layer detaches. In order to discharge it, the muscles in the uterus contract and then relax again in an irregular rhythm.
Detailed explanation-3: -When the egg is not fertilized, it is shredded off from the body and menstrual cycle takes place. Ovary releases one egg every month. At the same time, the uterus also prepares itself to receive a fertilized egg. The endometrium lining becomes thick and spongy for carrying embryo.