Coronary circulation is the circulation of blood in the blood vessels of the heart muscle (myocardium). The vessels that deliver oxygen-rich blood to the myocardium are known as coronary arteries. The vessels that remove the deoxygenated blood from the heart muscle are known as cardiac veins.These include the great cardiac vein, the middle cardiac vein, the small cardiac vein and the anterior cardiac veins.he vessels that remove the deoxygenated blood from the heart muscle are known as cardiac veins. These include the great cardiac vein, the middle cardiac vein, the small cardiac vein and the anterior cardiac veins.
The Marshall Plan, also known as the European Recovery Program, channeled over $13 billion to finance the economic recovery of Europe between 1948 and 1951.
What was the end result of the Vietnam War? A. The United States stayed and was defeated by Vietcong forces. B. The United States pulled out and the North Vietnamese eventually took the entire country. C. The United States stayed and defeated the Vietcong rebels. D. The United States pulled out and South Vietnam managed to keep control of its territory.