1. Dorsal metatarsal vein
2. Dorsal venous arch vein
3. Anterior tibial vein
4. Popliteal vein
5. Femoral vein
6. External iliac vein
7. Common iliac vein
8. Inferior vena cava
9. Passes opening from renal vein
10. Passes opening form hepatic vein
11. Right atrium
12. Tricuspid valve / right AV Valve
13. Right ventricle
14. Pulmonary semilunar valve
15. Pulmonary trunk
16. Right and left pulmonary arteries
17. Lungs
18. Right and left pulmonary veins
19. Left atrium
20. Bicuspid valve / mitral valve / Left AV Valve
21. Left ventricle