The heart has four chambers: the right atrium receives deoxygenated blood from the body, the right ventricle pumps it to the lungs, the left atrium receives oxygenated blood from the lungs, and the left ventricle pumps it to the body. It is made of cardiac muscle supplied by coronary arteries and is surrounded by pericardial membranes.
The heart has four chambers: the right atrium receives deoxygenated blood from the body, the right ventricle pumps it to the lungs, the left atrium receives oxygenated blood from the lungs, and the left ventricle pumps it to the body. It is made of cardiac muscle supplied by coronary arteries and is surrounded by pericardial membranes.
| Front | Describe the structure of the heart & state what each chamber does |
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| Back | Structure of the heart:
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