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.
Another condition that can cause rupture of the colon is colon cancer. Colon cancer occurs when small growths (known as polyps) begin to divide more rapidly than normal. The tumors then can cause the rupture of the organ by causing swelling and pressure, which can also lead to fecal impaction.