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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.
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.
The vagus nerve is also responsible for regulating inflammation in the body, via the inflammatory reflex. [7] Efferent vagus nerve fibers innervating the pharynx and back of the throat are responsible for the gag reflex. In addition, 5-HT 3 receptor-mediated afferent vagus stimulation in the gut due to gastroenteritis is a cause of vomiting. [8]
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
Vaginal dryness can also be a symptom of Sjögren syndrome (SS), a chronic autoimmune disorder in which the body destroys moisture-producing glands. Certain medications, including some over-the-counter antihistamines , as well as life events such as pregnancy, lactation , menopause , aging or diseases such as diabetes , will inhibit lubrication.
From ancient history to the modern day, the clitoris has been discredited, dismissed and deleted -- and women's pleasure has often been left out of the conversation entirely. Now, an underground art movement led by artist Sophia Wallace is emerging across the globe to challenge the lies, question the myths and rewrite the rules around sex and the female body.
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 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 ...