Label the internal structures of the heart.


1. right atrium
2. tricuspid valve
3. right ventricle
4. pulmonary valve
5. pulmonary trunk
6. pulmonary artery
7. pulmonary vein
8. left atrium
9. mitral or bicuspid valve
10. left ventricle
11. aortic valve
12. aorta
13. superior vena cava
14. inferior vena cava
15. endocardium
16. myocardium
17. pericardium

Health & Biomechanics

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