Functions of the heart structures
- ATRIUM: smaller chamber of the heart through which blood enters the heart
- VENTRICLE: larger chamber of the heart which pushes blood away from the heart
- AORTA: major artery carrying blood away from the left ventricle
- VENA CAVA: main vein returning blood to the right atrium
- CORONARY ARTERIES: the first vessels to branch from the aorta; they supply blood to the heart muscle
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