Related Experiment Video

Updated: Aug 10, 2026

Intracavernosal Pressure Recording to Evaluate Erectile Function in Rodents
08:03

Intracavernosal Pressure Recording to Evaluate Erectile Function in Rodents

Published on: June 6, 2018

Impotence is not always psychogenic. Newer insights into hypothalamic-pituitary-gonadal dysfunction

R F Spark, R A White, P B Connolly

    JAMA
    |February 22, 1980
    PubMed

    More Related Videos

    Treatment of Ejaculatory Duct Obstruction by Seminal Vesiculoscopy Assisted Flow Modification03:51

    Treatment of Ejaculatory Duct Obstruction by Seminal Vesiculoscopy Assisted Flow Modification

    Published on: December 8, 2023

    Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility04:22

    Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

    Published on: May 30, 2025

    Related Concept Videos

    Spermatogenesis01:41

    Spermatogenesis

    Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male reproductive...
    Male Sexual Response: Erection & Ejaculation01:17

    Male Sexual Response: Erection & Ejaculation

    Sexual stimulation can take various forms, such as physical touch and visual or auditory cues. When this happens, the parasympathetic reflex in the sacral portion of the spinal cord is activated. This reflex stimulates the release of nitric oxide (NO), which then dilates the arterioles in the penis, increasing blood flow to the erectile tissues - the corpora cavernosa and corpus spongiosum.
    The blood filling the erectile tissues compresses the veins, which helps to prevent blood from leaving...
    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...
    Infertility in Males01:23

    Infertility in Males

    Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
    Disorders of the Male Reproductive System01:20

    Disorders of the Male Reproductive System

    Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
    Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra. Symptoms...
    Psychosexual Stages of Personality: Genital01:23

    Psychosexual Stages of Personality: Genital

    The genital stage is the final phase of Sigmund Freud's theory of psychosexual development, beginning at puberty, around age 12. During this stage, sexual energy shifts from self-focused interests to external individuals, marking the development of mature adult sexuality. Freud saw this phase as a time of sexual reawakening, with desires directed toward others outside the family. A healthy transition into this stage, according to Freud, signifies the emergence of two key aspects of adult...