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Pinkeye (conjunctivitis) is redness and swelling of the mucous membrane (conjunctiva) that lines the eyelid and eye surface. The

Vital capacity (VC) measures the amount of air you can exhale after inhaling as deeply as possible. It is one of many lung

Vitamin B12 (cobalamin) is important in the formation of all cells in the body, especially red blood cells and the covering of

Vitamin D is vital for calcium absorption in bones and to improve muscle strength. Not getting enough vitamin D in childhood can

Vitamins are certain chemicals the body needs in small amounts to function properly. They work in a variety of ways, mostly as

Vitreous gel (also called vitreous humor) is a thick, colorless, gel-like fluid that fills the large space in the middle of the

A voiding cystourethrogram is a test that is done to see if there are problems with the bladder or other parts of the urinary

Voluntary functions are movements that are performed under a person's conscious control. An example of this type of function is

Von Willebrand disease is an inherited bleeding disorder that prevents blood from clotting properly. In this disease, a protein in

Vulnerable adults are those who are not able to defend themselves, protect themselves, or get help for themselves when injured or