Urinary bladder Urinary bladder The urinary bladder is a hollow muscular organ in humans and some other animals that collects and stores urine from the kidneys before disposal by urination. In the human the bladder is a hollow muscular, and distensible (or elastic) organ, that sits on the pelvic floor. Urine enters the bladder via the ureters and exits via the urethra. The typical human bladder will hold between 300 and (10.14 and ) before the urge to empty occurs, but can hold considerably more. In humans, the bladder is a hollow muscular organ situated at the base of the pelvis. Urine
Bladder pipe into the bladder. While the first creation of a double reed pipe with a bladder controlling breath is unknown, it is believed to have originated in Europe before the 13th century. As an intermediate phase between the almost pan-European bagpipe and the Renaissance crumhorn, the Bladder pipe flourished from the 14th to 16th centuries. Examples have been found from Germany, Poland, England, France, Italy, Spain (called the odrecillo) and Estonia (called the rakkopilli). As it declined in popularity, it became associated with beggars and peasants. The early bladder pipe is in a family of the early medieval "chorus" instruments, a