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sheep heart
posterior view
1. aorta
5. left ventricle
2. right atrium
6. left atrium
3. inferior vena cava
7. pulmonary veins
4. right ventricle
1. right atrium
5. left ventricle
2. tricuspid valve
6. bicuspid valve
3, right ventricle
7. left atrium
4. interventricular septum
8. bicuspid valve
10. papillary
muscle
9. chordae tendonae