By the end of the lesson, you should be able to:
*Describe the circulatory system as a system of tubes with a pump and valves to ensure one-way flow of blood.
*Describe the double circulation in terms of a low pressure circulation to the lungs and a high pressure circulation to the body tissues and relate these differences to the different functions of the two circuits.
Describe the structure and function of the heart in terms of muscular contraction and the working of valves.
Identify the main blood vessels to and from the heart, lungs, liver and kidney.
Describe the structure of arteries, veins and capillaries in relation to their functions and be able to recognize these vessels from photomicrographs.