King's Day (formerly Queen's Day) in Amsterdam. King's Day 2016 - Koningsdag 2016 is the Dutch national holiday to be held on Monday 27 April 2016.
Lesson Summary. Transitional epithelium is a layer of cells that form the mucosal lining of your ureters, a portion of your urethra, and your urinary bladder. The cells are stratified, which means they create several layers. These cells provide protection and allow the vessels to expand to accommodate fluid.
The most basic characteristic of epithelial tissue is that it covers the surfaces of the body, whether external or internal. It acts as a protective covering or boundary for such surfaces, including the outer layer of the skin, as well as the inner surface of hollow organs like the stomach, colon, and blood vessels.