Question

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left ventricle
right atrium
left atrium
mitral valve (bicuspid)
tricuspid valve
superior vena cava
pulmonary vein
right ventricle
pulmonary artery
aorta
inferior vena cava

Explanation:

1. Label 1 is the large vein carrying deoxygenated blood from the upper body to the heart: superior vena cava.
2. Label 2 is the vein carrying deoxygenated blood from the lower body: inferior vena cava.
3. Label 3 is the upper right heart chamber receiving deoxygenated blood: right atrium.
4. Label 4 is the valve between the right atrium and ventricle: tricuspid valve.
5. Label 5 is the main artery carrying oxygenated blood to the body: aorta.
6. Label 6 is the valve between the left atrium and ventricle: mitral valve (bicuspid).
7. Label 7 is the upper left heart chamber receiving oxygenated blood: left atrium.
8. Label 8 is the lower right heart chamber pumping deoxygenated blood: right ventricle.
9. Label 9 is the vein carrying oxygenated blood from lungs to heart: pulmonary vein.

(Note: The left ventricle and pulmonary artery positions are not numbered in the provided diagram, so they are not mapped here.)

Answer:

1. superior vena cava
2. inferior vena cava
3. right atrium
4. tricuspid valve
5. aorta
6. mitral valve (bicuspid)
7. left atrium
8. right ventricle
9. pulmonary vein