Chapter 13: Respiratory System

The trillions of cells in the body require an abundant and continuous supply of oxygen to carry out their vital functions. We cannot "do without oxygen" for even a little while, as we can without food or water. Furthermore, as cells use oxygen, they give off carbon dioxide, a waste product the body must get rid of.

The cardiovascular and respiratory systems share responsibility for supplying the body with oxygen and disposing of carbon dioxide. The respiratory system organs oversee the gas exchanges that occur between the blood and the external environment. The transportation of respiratory gases between the lungs and the tissue cells is accomplished by the cardiovascular system organs, using blood as the transporting fluid. If either system fails, body cells begin to die from oxygen starvation and accumulation of carbon dioxide.

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You should complete the following activities:

1. View 13-1 and 13-2 powerpoints

2. From the book web site:

a. View gas transport video

b. Take both online quizzes

c. Review the book flash cards

3. Study the ID diagram over upper respiratory tract

4. Take the interactive art quizzes

5. Study the Chapter 13 Flashcards

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