Trace a drop of blood that will travel to capillaries located in the third digit of your right hand, starting from and ending at the right atrium. Include all heart chambers and heart valves that the blood will flow through or past, and name all blood vessels. Include possible alternate routes for arterial flow in the antebrachium, and at least 3 possible routes for venous return. Indicate locations where blood is oxygen-rich ("oxygenated") and oxygen-poor ("deoxygenated"), and note where the changes in oxygenation levels occur.