bladder

(blad’er) [1,. vesi’ca_and cys‘tis]. 1. The membranous sac, situated in the anterior part of the pelvic cavity, which serves as a reservoir for the urine. Any sac or receptacle for a secretion. brain-b. +» any one of the embryonic cerebral vesicles. fasciculated b., a bladder which, from hypertrophy of the muscular coat, is ridged on its inner surface. gall-b., the cholecyst, or receptacle for the bile. irritable b., a state of the bladder marked by a constant desire to urinate. nervous b., a condition characterized by a constant desire to urinate without the power to do so completely. sacculated b., a bladder with pouches between the hypertrophied muscular fibers. stammering b., a bladder which acts spasmodically, causing irregular urination. urimary b. See bladder, ist def.