Respiratory System Quiz

Which of the following is NOT a function of the respiratory system?

• Voice production

• Innate immunity

• Regulation of blood pH

• Digestion of food

What is the function of the paranasal sinuses?

• To produce mucus

• To aid in defending against infections

• To carry tears from eyes

• To increase surface area of nasal cavity

Which structure prevents swallowed materials from entering the larynx?

• Epiglottis

• Thyroid cartilage

• Uvula

• Vocal folds

What is the primary organ of respiration?

• Liver

• Heart

• Stomach

• Lungs

What is the function of surfactant in the lungs?

• To increase surface area for gas exchange

• To reduce surface tension and prevent lung collapse

• To produce mucus for cleaning air

• To aid in voice production

Which of the following is NOT a pulmonary volume?

• Vital capacity

• Residual volume

• Inspiratory reserve volume

• Tidal volume

What is the total lung capacity?

• Tidal volume + Inspiratory reserve volume + Expiratory reserve volume

• Vital capacity + Residual volume

• Vital capacity + Residual volume + Tidal volume

• Inspiratory reserve volume + Expiratory reserve volume + Tidal volume

What is the primary factor that influences pulmonary volumes?

• Age

• Gender

• Weight

• Height

Where does gas exchange between blood and air occur?

• Bronchioles

• Trachea

• Bronchi

• Alveoli

What is the primary factor that influences the rate of diffusion in the respiratory membrane?

• Presence of surfactant

• Partial pressure of gases

• Thickness of membrane

• Total area of membrane