What is the red blood cell tracing from the occipital lobe of the brain back to the left ventricle?

Red blood cells (RBCs) from the occipital lobe travel through a network of cerebral arteries, specifically the posterior cerebral artery, which supplies blood to that region. From there, they return to the heart via the venous system, collecting in the internal jugular vein and then the brachiocephalic vein. The blood then flows into the superior vena cava, which empties into the right atrium. Finally, oxygenated blood is pumped from the left ventricle into the aorta, circulating throughout the body.