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Vaginal contractions are caused by both the activity of certain brain regions and the release of the hormone oxytocin. It has been suggested that vaginal contractions during orgasm can increase the chances of pregnancy as they transport sperm up the reproductive tract from the vagina to the oviducts, which decreases the distance it has to travel.
Vagusstoff (literally translated from German as "Vagus Substance") refers to the substance released by stimulation of the vagus nerve which causes a reduction in the heart rate. Discovered in 1921 by physiologist Otto Loewi , vagusstoff was the first confirmation of chemical synaptic transmission and the first neurotransmitter ever discovered.
The term vagina is from Latin vāgīna, meaning "sheath" or "scabbard". [1] The vagina may also be referred to as the birth canal in the context of pregnancy and childbirth. [2] [3] Although by its dictionary and anatomical definitions, the term vagina refers exclusively to the specific internal structure, it is colloquially used to refer to the vulva or to both the vagina and vulva.
The human female reproductive system is made up of the internal and external sex organs that function in the reproduction of new offspring. The reproductive system is immature at birth and develops at puberty to be able to release matured ova from the ovaries , facilitate their fertilization , and create a protective environment for the ...
Female sexual arousal. On the left, the female genitalia are in regular state. On the right, the female is sexually aroused, the vulva is wet and its labia are slightly engorged. Erection of nipples; Vaginal lubrication; Vasocongestion of the vaginal walls; Tumescence and erection of the clitoral glans and labia; Elevation of the cervix and uterus
Sexual arousal can increase to the point where one or both partners experience an orgasm either in succession, or simultaneously. The hypothesis of two modes of female orgasm - "vaginal" or "clitoral" - is not tenable. Rather, it is a complex reaction in which all organ systems of the human body are involved.
“The brain is the body's most important sexual organ, so one of the best ways to increase the intensity of your orgasm is to increase arousal—for example, by fantasizing and living out your ...
Sexual stimulation is anything that leads to sexual arousal or orgasm.This thing can be physical or of other senses, and is known as a stimulus.. Sexual stimulation is a broad term, usually understood to mean physical touching of the genitals or other body parts.