Assistant principals aid the principal in the overall administration of the school. Some assistant principals hold this position for several years to prepare for advancement to principal jobs; others are career assistant principals.n larger school systems, a principal is often assisted by someone known as a vice-principal (Republic of Ireland: deputy principal) or assistant principal.
Causes. Pressure on the bladder during delivery is the main cause of a ruptured bladder, although a weakness in the bladder wall may make it susceptible to a rupture. In older horses, a ruptured bladder may be caused by an accident or related to a urinary obstruction.
A gallbladder rupture is a medical condition where the gallbladder leaks or bursts. Ruptures are commonly caused by inflammation of the gallbladder. This inflammation can be caused by gallstones, which can get stuck inside the gallbladder. In rare cases, an injury can cause a rupture. If your gallbladder ruptures, you may have sudden, sharp severe pain.