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Related Concept Videos

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...
Urodynamic Studies: Uroflowmetry01:19

Urodynamic Studies: Uroflowmetry

Uroflowmetry is a non-invasive urodynamic test designed to measure various aspects of urination, including volume, flow rate, and the time to void. This test is crucial for diagnosing and assessing conditions such as bladder outlet obstruction, bladder dysfunction, incomplete bladder emptying, incontinence, and urinary tract blockages caused by benign prostatic hyperplasia (BPH) and urethral strictures.Pre-Test Instructions:Before a uroflowmetry test, patients are typically advised to drink...
Electrocardiogram01:29

Electrocardiogram

An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
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Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

Introduction
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Related Experiment Video

Updated: Jun 15, 2026

Programmed Electrical Stimulation in Mice
07:29

Programmed Electrical Stimulation in Mice

Published on: May 26, 2010

An electrophysiologic study of female ejaculation.

Ahmed Shafik1, Ismail A Shafik, Olfat El Sibai

  • 1Department of Surgery and Experimental Research, Cairo University, Cairo, Egypt. shafik@ahmedshafik.com

Journal of Sex & Marital Therapy
|February 26, 2010
PubMed
Summary

This study investigated female ejaculation, finding that female orgasm is not linked to fluid expulsion. Electromyography and pressure recordings during clitoral stimulation showed distinct physiological responses during orgasm, without associated ejaculation.

Related Experiment Videos

Last Updated: Jun 15, 2026

Programmed Electrical Stimulation in Mice
07:29

Programmed Electrical Stimulation in Mice

Published on: May 26, 2010

Area of Science:

  • Sexology
  • Physiology
  • Female Sexual Health

Background:

  • The existence of female ejaculation remains a debated topic in sexual science.
  • Understanding the physiological processes during female orgasm is crucial for sexual health research.

Purpose of the Study:

  • To investigate the physiological correlates of female orgasm.
  • To test the hypothesis that female orgasm is not associated with ejaculation.

Main Methods:

  • Studied 38 healthy women undergoing glans clitoris electrovibration.
  • Simultaneously recorded vaginal and uterine pressures.
  • Measured electromyography of the corpus cavernosus, ischio-, and bulbo-cavernosus muscles.

Main Results:

  • Clitoral electrovibration led to diminished vaginal/uterine pressures and corpus cavernosus activity until erection.
  • Ischio- and bulbo-cavernosus muscles showed intermittent activation at orgasm.
  • No fluid expulsion from the vagina or urethra was observed during orgasm.

Conclusions:

  • Female orgasm is a distinct physiological event not characterized by ejaculation.
  • The study provides physiological evidence differentiating orgasm from ejaculation in women.