1 Sometimes plaque or a blood clot can completely close an artery, blocking the blood flow to tissue on the other side.  Damaged arteries cause blood supply failures. When a blockage cuts off the blood supply, part of the heart muscle supplied by that coronary artery is deprived of blood.
But the Fertile Crescent refers to areas of fertile soil near important rivers in the area. It stretches from the Nile River in Egypt to the Tigris and Euphrates rivers in modern Iraq.It also encompasses several other countries, including Israel, Lebanon, Jordan and Syria.he Arabian Desert lies to the south of the Fertile Crescent. Archeologist James Henry Breasted first used the term â Fertile Crescent â to describe the area. According to him, the Fertile Crescent was the first area settled in western Asia.
The hot desert is a land of extremes: extreme heat and extreme dryness; sudden flash floods and cold nights. Because deserts are such a harsh environment, deserts often have names likes Death Valley, the empty quarter, and the place from where there is no return.. Deserts are usually very, very dry.