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.
What are some landmarks of the semiarid desert? The semi-arid desert has almost the same landmark as the arid desert with oasis and everything the arid has. Although semiarid deserts have all of the arid desert's landmark, there are less sand dunes in the semiarid desert compared to the arid desert.hat does a semiarid desert's food web look like? In the semiarid desert the food web starts with the producers. some producers in this kind of desert are, brittle bushes, bur sage, cat claw, creosote bushes, jujubes, lyciums, mesquite and white thorns. Lizards, snakes, and rodents eat these plants.