Exam 36: Ventilation

External respiration can be defined as:

Standard atmospheric pressure is _____ mm Hg.

Both external respiration and internal respiration take place in capillaries.

Vital capacity is the sum of inspiratory reserve volume, tidal volume, and expiratory reserve volume.

The tendency of the lungs and thorax to return to their preinspiration volume is a physical phenomenon called elastic recoil.

A collapsed lung has no air in it and will sink if placed in water.

Which of the following constitutes total lung volume?

Which of the following combinations in arterial blood could cause an increase in the respiratory rate?

In normal breathing, the inspiratory reserve volume is greater than the expiratory reserve volume.

Match each type of breathing with its corresponding definition. -Cycles of gradually increasing tidal volume for several breaths followed by several breaths with gradually decreasing tidal volume

As the blood volume in the lung increases, the vital capacity increases.

The residual volume is increased with a pneumothorax.

Labored or difficult breathing is known as:

George, a heavy smoker for 30 years, has developed a decreased expiratory reserve volume and a large, barrel-shaped chest cavity. What is his probable diagnosis?

A pulmonary volume is the sum of two or more pulmonary capacities.

Match each type of breathing with its corresponding definition. -Labored or difficult breathing; often associated with hypoventilation

Which gas law deals with the solubility of gases in solution?

If a person's total minute volume is 7500 ml and the volume of air in one breathing cycle is 500 ml, the breathing rate must be 20 cycles per minute.

Standard atmospheric pressure is usually about 760 mm Hg.

The volume forcefully expired during the first second, FEV1, is usually about 70% of the vital capacity.