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 Western Desert is Egypt's portion of the Libyan Desert. It is comprised of 262,000 square miles of sand dunes, valleys and mountainous plateaus. This one desert encompasses more than two-thirds of Egypt's land area and is about the size of Texas. Five oases can be found in this desert land, just west of the Nile Valley: Bahariya Oasis, Dakhla Oasis, Farafra Oasis, Kharga Oasis and Siwa Oasis.