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.
One last thing about the geography of Mesopotamia. You may hear it called the Fertile Crescent on the Internet or in your textbook. Look at the picture: The Fertile Crescent includes all of Mesopotamia (on the right) and the land around the Nile River in Egypt (on the left). It has this nickname because the land in this region is very fertile, and it is shaped like a crescent (think of a crescent dinner roll or a crescent moon).