1. Identify the components of blood and describe the function of each component. 

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2. Beginning with the vena cava, describe the flow of blood through the heart, pulmonary circuit, and systemic circuit. Be sure to include each of the heart chambers and valves. Note when the blood becomes deoxygenated and oxygenated.

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3. Describe the structures of the cardiac conduction system and explain how this system functions.

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4. Compare and contrast the lymphatic system and immune system. How are these systems different and how do they work together?