The document summarizes the key components and functions of the cardiovascular system. It describes how blood transports oxygen, nutrients, and waste via red blood cells, white blood cells, and platelets. It also explains the two types of circulation - pulmonary and systemic - and compares the different characteristics of arteries, veins, and capillaries like their thickness, pressure, and direction of blood flow.

1. Cardiovascular System

5. 4. Blood flow through the heart and body right atrium right ventricle pulmonary artery lungs pulmonary veins left atrium left ventricle aorta smaller arteries capillaries small veins larger veins right atrium

7. 6. Comparing arteries, veins, & capillaries Away from Thick No High Distributes blood, carries O 2 and nutrients Towards Thin Yes Low Returns blood, carries CO 2 and other wastes Both Very thin No Low Exchanges O 2 and nutrients with cells, picks up CO 2 and wastes Function Pressure Valves Thickness of Walls Direction of Flow Capillary Vein Artery Type of Blood Vessel