The system circulation involves the pathway of blood from the heart to the entire body, excluding the lungs, and back to the heart. The pulmonary circulation includes the pathway of blood from the heart to the lungs and back to the heart....
Explain how, if blood pressure in veins is too low to transport blood back to the heart by itself, blood is still able to circulate in the veins and make it way back to the heart. How do the arteries of the pulmonary circulation differ structurally from the systemic arteries? Describe ...
Describe the route of a red blood cell traveling from the heart to the left elbow and back to the heart. Explain how electric conduction travels through the heart to stimulate the cardiac cycle. The outward force that blood exerts on the walls of blood vessels is; (Exp...