vestibular disease A disorder of the vestibular apparatus, which is necessary for the sense of balance. A disease may cause vestibular problems by directly affecting the structure or integrity of the vestibular apparatus in the ear, by interrupting the feedback loop between these structures and the brain, or by affecting the parts of the brain…
vestibular apparatus The vestibule and three semicircular canals of the inner ear. Like an internal carpenter’s level, these structures work with the brain to sense, maintain, and regain balance and a sense of where the body and its parts are positioned in space. See also vestibular disease; vestibular system.
vestibular 1 Having to do with a structure that is a vestibule (entrance), such as the vestibule of the ear. 2 Having to do with the body’s system for maintaining equilibrium.
vessel A tube in the body that carries fluids. Examples of vessels are blood vessels and lymph vessels.
vesiculography The use of special X-ray equipment and a dye to examine the seminal vesicles and related structures. Vesiculography is most often used when prostate disease or cancer is suspected.
vesiculitis Inflammation of a vesicle, particularly of the seminal vesicles behind the male bladder.
vesicular rickettsiosis See rickettsialpox.
vesicular Referring to the presence of one or more vesicles. For example, a vesicular rash features small blisters on the skin.
vesicoureteral reflux The abnormal back flow of urine from the bladder into the ureters toward the kidneys. Abbreviated VUR. VUR is most commonly diagnosed during infancy and childhood and can be due to a congenital dysfunction in the valve where the ureter enters the bladder or to an acquired blockage in the urinary tract. VUR…
vesicle, seminal See seminal vesicle.
vesicle 1 In dermatology, a tiny skin blister. 2 In anatomy, a small pouch.
vesicatory See vesicant.