Circulation and Gas Exchange

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15

Distinguish between pulmonary and systemic circuits and explain the function of each.

Trace the path of a red blood cell through the human heart, pulmonary circuit, and systemic circuit.

Slide 94

Define cardiac cycle and explain the role of the sinoatrial node.

Relate the structures of capillaries, arteries, and veins to their function.

Define blood pressure and cardiac output and describe two factors that influence each.

Explain how osmotic pressure and hydrostatic pressure regulate the exchange of fluid and solutes across the capillary walls.

Slide 95

Describe the role played by the lymphatic system in relation to the circulatory system.

Describe the function of erythrocytes, leukocytes, platelets, fibrin.

Distinguish between a heart attack and stroke.

Discuss the advantages and disadvantages of water and of air as respiratory media.

Slide 96

For humans, describe the exchange of gases in the lungs and in tissues.

Draw and explain the hemoglobin-oxygen dissociation curve.