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Heart & Blood Vessels: Your Coronary Arteries. The heart receives its own supply of blood from the coronary arteries. Two major coronary arteries branch off from the aorta near the point where the aorta and the left ventricle meet. These arteries and their branches supply all parts of the heart muscle with blood. Left Main Coronary Artery (also called the left main trunk)
The carotid arteries are the two major arteries, one on each side of the neck, that run from the aorta in the chest to the skull and supply the brain with oxygen and nutrients in the blood. With age and also due to life style choices like smoking