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  2. Menstruation - Wikipedia

    en.wikipedia.org/wiki/Menstruation

    Diagram illustrating how the uterus lining builds up and breaks down during the menstrual cycle Menstruation (also known as a period, among other colloquial terms) is the regular discharge of blood and mucosal tissue from the inner lining of the uterus through the vagina. The menstrual cycle is characterized by the rise and fall of hormones. Menstruation is triggered by falling progesterone ...

  3. Menstrual cycle - Wikipedia

    en.wikipedia.org/wiki/Menstrual_cycle

    Menstrual cycle The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that makes pregnancy possible. The ovarian cycle controls the production and release of eggs and the cyclic release of estrogen and progesterone. The uterine cycle governs the preparation and maintenance of the lining of the ...

  4. Menarche - Wikipedia

    en.wikipedia.org/wiki/Menarche

    Menarche (/ m ə ˈ n ɑːr k i / mə-NAR-kee; from Ancient Greek μήν (mēn) 'month' and ἀρχή (arkhē) 'beginning') is the first menstrual cycle, or first menstrual bleeding, in female humans. From both social and medical perspectives, it is often considered the central event of female puberty, as it signals the possibility of fertility ...

  5. Here's What Really Happens During Your Menstrual Cycle - AOL

    www.aol.com/heres-really-happens-during...

    Gynecologists explain what happens during the follicular phase and luteal phase of a menstrual cycle and what causes irregular periods.

  6. Ovulation - Wikipedia

    en.wikipedia.org/wiki/Ovulation

    Ovulation is an important part of the menstrual cycle in female vertebrates where the egg cells are released from the ovaries as part of the ovarian cycle. In female humans ovulation typically occurs near the midpoint in the menstrual cycle and after the follicular phase. Ovulation is stimulated by an increase in luteinizing hormone (LH).

  7. Glossary of biology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_biology

    This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...

  8. This is what your body is actually doing during your ... - AOL

    www.aol.com/body-actually-doing-during-menstrual...

    No, your menstrual cycle isn't only one week. For premium support please call: 800-290-4726 more ways to reach us

  9. Estrous cycle - Wikipedia

    en.wikipedia.org/wiki/Estrous_cycle

    Mammals that have menstrual cycles shed the endometrium through menstruation instead. Humans, elephant shrews , and a few other species have menstrual cycles rather than estrous cycles. Humans, unlike most other species, have concealed ovulation , a lack of obvious external signs to signal estral receptivity at ovulation (i.e., the ability to ...