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Related Concept Videos

Menopause01:28

Menopause

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Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
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Hormonal Regulation of the Menstrual Cycle01:22

Hormonal Regulation of the Menstrual Cycle

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The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
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The Menstrual Cycle01:19

The Menstrual Cycle

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The menstrual cycle is a recurrent sequence of changes in the uterine endometrium, specifically its functional layer, the stratum functionalis. This cycle prepares the uterus for potential pregnancy. This cycle typically spans 21–35 days, averaging 28 days, and aligns with the ovarian cycle, regulated by fluctuating levels of ovarian hormones, primarily estrogen and progesterone.
The menstrual phase occurs from days 1 to 5 and involves the shedding of the stratum functionalis, as a...
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Menses Phase01:18

Menses Phase

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The uterine cycle begins with the menstrual phase, which is considered day one of the cycle and typically lasts about five days. This phase is characterized by the degeneration and shedding of the stratum functionalis, the functional layer of the endometrium.
When fertilization does not occur, the corpus luteum deteriorates, causing a significant drop in the levels of estrogen and progesterone in the body. This hormonal decrease triggers the release of prostaglandins, which cause the uterine...
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Ovarian Cycle01:27

Ovarian Cycle

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The menstrual cycle includes a critical component known as the ovarian cycle, which undergoes two main phases each month—the follicular phase and the luteal phase. The follicular phase is variable and averaging around 14 days. Ovulation, triggered by a surge in luteinizing hormone (LH), marks the transition between the two phases. The second phase, the luteal phase, is relatively consistent, lasting approximately 14 days, and is marked by the activity of the corpus luteum. While a cycle...
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Oogenesis02:07

Oogenesis

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In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
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Related Experiment Video

Updated: Apr 19, 2026

A Method to Study the Impact of Chemically-induced Ovarian Failure on Exercise Capacity and Cardiac Adaptation in Mice
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[Maternity during the climateric].

Graciela Girardi1, Diana Zalzman

  • 1Capítulo de Salud Mental de la Mujer. gracielagirard@gmail.com.

Vertex (Buenos Aires, Argentina)
|December 30, 2014
PubMed
Summary

The climacteric, or menopause, is a vital life stage for women, presenting unique challenges and opportunities. This period can offer new possibilities, including motherhood, defying traditional biological limits.

Area of Science:

  • Reproductive Health
  • Women's Health
  • Gerontology

Context:

  • The climacteric represents a significant life transition for women, bridging their fertile years and completion.
  • Individual experiences of the climacteric are shaped by personal history, health status, and cultural background.
  • Historically, menopause has been associated with depression, but contemporary views recognize it as a period of potential transformation.

Purpose:

  • To reframe the understanding of the climacteric beyond a decline, highlighting its potential for new life experiences.
  • To explore the evolving concept of motherhood in the context of increased longevity and reproductive advancements.
  • To challenge traditional biological limitations associated with female reproduction.

Summary:

  • The climacteric is a dynamic life stage, not solely defined by biological cessation but by individual and cultural contexts.

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  • Shifting societal roles for women, increased lifespan, and assisted reproductive technologies expand possibilities during this phase.
  • Motherhood is increasingly recognized as a viable option beyond conventional reproductive timelines.

    • Impact:

    • Promotes a more holistic and empowering perspective on women's later life stages.
    • Encourages a re-evaluation of reproductive potential and family planning options for aging women.
    • Highlights the influence of socio-cultural factors and medical advancements on women's health and life choices.