Page 215 - 84 human physiolofy part-1

The Respiratory System

D) Nothing, it’s inherited

5. The need to breathe is caused by

A) A decrease in blood pH
B) An increase in blood pH
C) A decrease in blood oxygen levels
D) A decrease in carbon dioxide levels

6. A person more susceptible to Chronic Obstructive Pulmonary Disease would be

A) A long time smoker
B) A long time fireman
C) A child whose parents smoke
D) A farmer that deals with pesticides
E) All of the above

7. The exchange of gases between the blood within the capillaries and tissue fluid surrounding the
body's cells is called?

A) external respiration
B) cell metabolism
C) cellular respiration
D) internal respiration

8. The medulla oblongata and pons regulate and measure what?

A) The pH level of your blood
B) Your body temperature
C) The amount of O2 in your blood
D) The amount of air in your lungs

9. About how many alveoli are there in the lungs?

A) 300 million
B) 300 billion
C) 300 trillion
D) 300 thousand
E) None of the above

10. In relation to atmospheric pressure, intrapleural pressure is:

A) more pressurized
B) less pressurized
C) about the same

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