The document outlines learning objectives for understanding transport in humans. It describes the circulatory system as tubes with a pump and valves to ensure one-way blood flow. It also describes double circulation with low-pressure circulation to the lungs and high-pressure circulation to body tissues. Key parts of the heart are defined along with coronary heart disease. The effect of physical activity on pulse rate is a learning goal. Blood vessels serving major organs are listed, and the structures and functions of arteries, veins and capillaries are outlined. Components of blood and their functions are identified.