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Heart-Matching

Answer Key:
4 - aorta
7 - vena cava
16 - mediastinum
17 - pericardium
8 - endocardium
14 - atrium
15 - ventricle
1 - tricuspid valve
13 - mitral valve
3 - myocardium
5 - coronary vessels
9 - sinoatrial node
12 - cardiac output
18 - stroke volume
6 - medulla
10 - systole
11 - diastole
2 - septum