Glossary of terms used on this site

V

Term Definition
Vacuum device

A device that is used to provide an erection. It is composed of 3 parts a cylinder, a pump, and a constricting band. The band is preloaded on the bottom of the cylinder, and the cylinder is placed over the penis. The pump, which is connected to the cylinder, creates a suction that pulls blood into the penis. Because the constricting band is placed at the base of the penis, the blood remains in the penis until the band is removed.
Vardenafil (Levitra, Staxyn)

A medication used to treat erectile dysfunction that works by increasing the flow of blood into the penis.
Vas deferens

The long, muscular tube that travels from the epididymis into the pelvic cavity, to just behind the urinary bladder ending in the seminal vesicles which in turn empty into the urethra through the prostate. The vas deferens transports mature sperm to the urethra in preparation for ejaculation.
Vascular

Relating to the blood vessels of the body. The blood vessels of the body, as a group, are referred to as the vascular system.
Vascular disease

A disease of the blood vessels.
Vascular reconstructive surgery

Surgery performed in an attempt to improve the flow of blood.
Vasoactive

Affecting the size (diameter) of blood vessels.
Vasoactive injection

A test in which an erection is produced by injecting special solutions that cause the blood vessels to dilate.
Vasospasm

Constriction of the arteries.
Vasovagal attack

A transient vascular and neurogenic reaction marked by pallor (white, ghost-like look), sweating, slow heart rate, and lowering of the blood pressure
Vein

A blood vessel in the body that carries deoxygenated blood from the tissues back to the heart.
Venous leak

Veins that don't compress to prevent blood from draining out of the corpora during erection. Venous leak may also refer to the rare occasions in which abnormally located veins allow for persistent drainage of blood during an erection.
Venous ligation

A procedure in which veins are obstructed (tied or clipped) or removed, enabling an adequate amount of blood to enter the penis for erection.
Venous ligation surgery

A surgical procedure in which leaky veins in the penis are ligated to prevent blood from continually flowing out of the penis during erection.
Viagra

See Sildenafil.
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