Respiratory System Quiz

The alveoli are lined with:

• Simple squamous epithelium

• Ciliated pseudostratified columnar epithelium

• Simple cuboidal epithelium

• Transitional epithelium

Which of the following is a function of the respiratory system?

• Gas exchange

• pH regulation

• Vocalization

• All of the above

The volume of air that can be forcefully exhaled after a normal exhalation is called:

• Tidal volume

• Inspiratory reserve volume

• Expiratory reserve volume

• Residual volume

The volume of air remaining in the lungs after a maximal exhalation is called:

• Tidal volume

• Inspiratory reserve volume

• Expiratory reserve volume

• Residual volume

The maximum volume of air that can be exhaled after a maximal inhalation is called:

• Tidal volume

• Inspiratory reserve volume

• Expiratory reserve volume

• Vital capacity

The total volume of air the lungs can hold is called:

• Tidal volume

• Inspiratory reserve volume

• Expiratory reserve volume

• Total lung capacity

The partial pressure of oxygen in arterial blood is typically:

• 40 mmHg

• 60 mmHg

• 100 mmHg

• 140 mmHg

The partial pressure of carbon dioxide in arterial blood is typically:

• 40 mmHg

• 60 mmHg

• 100 mmHg

• 140 mmHg

The partial pressure of oxygen in venous blood is typically:

• 40 mmHg

• 60 mmHg

• 100 mmHg

• 140 mmHg

The partial pressure of carbon dioxide in venous blood is typically:

• 40 mmHg

• 45 mmHg

• 100 mmHg

• 140 mmHg