What is Menstrual Cycle in College Biology? PDF Book

Learn Menstrual Cycle definition in college biology with explanation to study “What is Menstrual Cycle”. Study menstrual cycle explanation with college biology terms to review biology course for online degree programs.

Menstrual Cycle Definition

  • As the spongy lining is not needed, it gradually disintegrates. It, too, is slowly lost through Vagina. This is called menstruation or a period.

    Cambridge IGSCE Biology by Mary Jones, Geoff Jones



Menstrual Cycle Explanation

In menstrual cycle, one egg usually is excrete into the oviduct every month, particularly, when woman approaches the phase of puberty. So, if the egg cell that are not properly fertilised become dead and do not take part in sinking into spongy wall and gradually lost through the vagina, named as menstruation or period.

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