Excretory system properly dissolved, they have the ability to build up, and form these kidney stones. These stones are most commonly made up of substances such as calcium, cystine, oxalate, and uric acid, as these are the substances that normally would dissolve within the urine. When they do not dissolve correctly and further build up, they will commonly lodge themselves in the urinary tract and in this case, are usually small enough to pass through urine. In extreme situations, however, these stones may lodge themselves within the tube that connects the kidney and the bladder, called the ureter. In this case, they
Bladder fiddle Bladder fiddle The bladder fiddle (also known as bumbass or poispil) is a folk instrument used throughout Europe. The instrument was a simple large monochord made with a long stick, a thick gut string, and a pig's bladder. It is bowed with either a notched stick or a horsehair bow. It is known under different names; in Germany it was called the bumbass, in France the "basse de Flandre", and in England a drone, "drone and string" or bladder fiddle. In Germany sometimes a bell or cymbal was added to the top for decoration or additional sound. In England it