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Final answer:Thecoronary arteries, which branch off from the aorta, supply the heart with oxygen and nutrients.Deoxygenated bloodis gathered by the coronary veins and returned to the right atrium. The heart is protected and held in place by thepericardium.Explanation:In the activity oncoronary circulation, the following labels would apply:Thecoronary arteriesare responsible for supplying the heart muscle with oxygen and nutrients. They branch from the aorta and supply the heart muscle cells like a crown.Thecoronary arteriesemanate from the first section of the aorta after it comes out from the left ventricle. Specifically, they originate from two of three dilations (sinuses) in the aorta's wall just above the aortic semilunar valve, known as the left posterior aortic sinus and anterior aortic sinus.Thecoronary veinsgather deoxygenated blood from the heart muscle. They converge the blood collected from the capillaries and deliver it back to the right atrium where it is then sent to the lungs for re-oxygenation.Thepericardiumis the structure that protects the heart and anchors it to surrounding structures like the sternum and the diaphragm. Its outer layer is known as the epicardium, also one of the layers of the heart wall.Learn more aboutCoronary Circulationhere:brainly.com/question/13155458#SPJ11...