What is the course of blood flow in pulmonary circulation?
Between heart and lungs.
The course of blood flow in pulmonary circulation is between heart and lungs. During pulmonary circulation, deoxygenated blood from right ventricle flows through pulmonary artery and reaches lungs. After the gaseous exchange at lungs, CO2 present in blood is exchanged with O2 and brought back to left auricle of heart by the pulmonary veins.