Final Answer:
The labeled parts (from top to bottom, left to right as typically arranged on such a sheet) are:
1. Superior vena cava
2. Aorta
3. Pulmonary artery
4. Right atrium
5. Right ventricle
6. Left atrium
7. Left ventricle
8. Inferior vena cava
9. Brachial artery (left)
10. Brachial artery (right)
11. Radial artery (left)
12. Radial artery (right)
13. Femoral artery (left)
14. Femoral artery (right)
15. Popliteal artery (left)
16. Popliteal artery (right)
17. Dorsalis pedis artery (left)
18. Dorsalis pedis artery (right)
*(Note: Since the worksheet has blank boxes with lines pointing to specific vessels/organs, the exact matching depends on the line positions. However, standard labeling for this common diagram follows the above order. For classroom use, students usually label: heart chambers, major arteries/veins—superior/inferior vena cava, aorta, pulmonary trunk, brachial, radial, femoral, popliteal, and dorsalis pedis arteries.)*
Parent Tip: Review the logic above to help your child master the concept of human circulatory system worksheet.