Trace blood flow from sole of foot to brain?
1. Plantar venous arches: Small veins on the sole of the foot that collect blood from the capillaries.
2. Dorsal venous arch: A larger vein on the top of the foot that receives blood from the plantar venous arches.
3. Great saphenous vein: The main superficial vein of the leg, which begins on the dorsal venous arch and runs up the leg.
4. Popliteal vein: The great saphenous vein joins the popliteal vein behind the knee.
5. Femoral vein: The popliteal vein continues as the femoral vein in the thigh.
6. External iliac vein: The femoral vein becomes the external iliac vein in the pelvis.
7. Common iliac vein: The two external iliac veins merge to form the common iliac vein.
8. Inferior vena cava (IVC): The common iliac veins empty into the IVC, which is the largest vein in the body.
9. Right atrium: The IVC carries blood to the right atrium of the heart.
10. Tricuspid valve: Blood flows through the tricuspid valve into the right ventricle.
11. Pulmonary artery: The right ventricle pumps blood into the pulmonary artery, which carries it to the lungs.
12. Pulmonary capillaries: In the lungs, the pulmonary artery branches into tiny capillaries where gas exchange occurs. Carbon dioxide is released from the blood and oxygen is taken up.
13. Pulmonary veins: Oxygenated blood from the lungs returns to the heart through the pulmonary veins.
14. Left atrium: The pulmonary veins empty into the left atrium of the heart.
15. Mitral valve: Blood flows through the mitral valve into the left ventricle.
16. Aortic valve: The left ventricle pumps blood into the aorta, the largest artery in the body, which carries it to all parts of the body, including the brain.