Check your grammar now! : a complex sphincter closing the duodenal orifice of the common bile duct.
This Living Encyclopedia of East Africa is intended to provide information on the countries that primarily make up Swahili-speaking region of East Africa in a concise form. These countries are Kenya, Tanzania, Uganda, Rwanda, and Burundi.
Eastern Europe is the eastern part of the European continent. There is no consensus as to the precise area it refers to, partly because the term has a wide range of geopolitical, geographical, cultural, and socioeconomic connotations.