1. Precordium:
Answer area on anterior chest overlying heart and great vessels
2. Heart has four chambers::
Answer Atria and ventricles
3. Great vessels:
Answer major arteries and veins connected to the heart
4. Blood vessels arranged in two continuous loops::
Answer Pulmonary circulationSystemic circulation
5. Pericardium:
Answer tough, fibrous, double-walled sac thatsurrounds and protects heart
6. Myocardium:
Answer muscular wall of heart
7. Endocardium:
Answer thin layer of endothelial tissue that lines inner surface of heartchambers and
valves
8. Atrium:
Answer thin-walled reservoir for holding blood
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