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 main rivers in the Fertile Crescent are  the Euphrates River, the Tigris River, and the Jordan River. The Fertile Crescent included the arable river valleys that ran from Africa to the Persian Gulf in Western Asia. The Fertile Crescent begins in what is now southern Iraq where the Tigris and Euphrates rivers empty into the Persian Gulf. It extends north along with the rivers, turns â¦ westward in what was ancient Assyria, and then turns back south in what is modern Syria.