Related Experiment Video

Updated: Aug 27, 2026

Two Types of Assays for Detecting Frog Sperm Chemoattraction
10:02

Two Types of Assays for Detecting Frog Sperm Chemoattraction

Published on: December 27, 2011

[Ambivalence of bisexuality of progesterone]

C DO AMARAL

    Anais Brasileiros De Ginecologia
    |July 1, 1951
    PubMed
    Abstract

    No abstract available in PubMed .

    Keywords:
    PROGESTERONE/effects

    More Related Videos

    Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies06:24

    Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies

    Published on: January 10, 2025

    Related Concept Videos

    Gonadal and Placental Hormones01:24

    Gonadal and Placental Hormones

    The gonads, namely the testes in males and the ovaries in females, are pivotal in producing gonadal hormones that orchestrate the intricate processes of sexual development and reproduction.
    In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair growth — and...
    Hormonal Regulation01:33

    Hormonal Regulation

    The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
    Hormonal Regulation02:03

    Hormonal Regulation

    Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains many different hormones all with multiple functions that are both, directly and indirectly, involved in digestion.The ProcessStarting in the stomach, when proteins are detected by sensory neurons of the enteric nervous system, the pyloric gland is stimulated to release gastrin. In turn, this hormone induces the release of histamine. Combined, they...
    Menopause01:28

    Menopause

    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...
    Hormonal Regulation of the Menstrual Cycle01:22

    Hormonal Regulation of the Menstrual Cycle

    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 release.
    Prochirality02:05

    Prochirality

    The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...