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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)
Blood Vessel Structure and Function-. A. Overview- Great arteries leave the heart, branch to smaller and. smaller arteries which lead to capillaries. Capillaries allow exchange of. materials at tissues. Capillaries merge and lead to tiny venules, which. merge to larger and larger veins until they finally dump back into the. heart, via the huge inferior and superior vena cava.