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.
B. pertussis colonize the cilia of the mammalian respiratory epithelium. The epithelium is a tissue composed of a layer of cells. The main purpose of the respiratory epithelium is to moisten and protect the airways.It was originally thought that B. pertussis did not invade the tissues.. pertussis colonize the cilia of the mammalian respiratory epithelium. The epithelium is a tissue composed of a layer of cells. The main purpose of the respiratory epithelium is to moisten and protect the airways.