Understanding the Respiratory System

What is the primary function of the nasal cavity in the respiratory system?

• To exchange gases between the blood and the air

• To filter, warm, and humidify the air

• To produce surfactant

• To transport oxygen in the blood

Which structure connects the pharynx to the bronchi?

• Alveoli

• Trachea

• Bronchioles

• Pleurae

What is the role of alveoli in the respiratory system?

• To transport respiratory gases

• To facilitate external respiration

• To produce hemoglobin

• To regulate pulmonary ventilation

Which of the following is a chronic obstructive pulmonary disease?

• Asthma

• COPD

• Pneumonia

• Tuberculosis

What is the function of surfactant in the lungs?

• To increase the surface tension in alveoli

• To decrease the surface tension in alveoli

• To transport oxygen

• To filter air

Which term describes the movement of air into and out of the lungs?

• Internal respiration

• Pulmonary ventilation

• Respiratory gas transport

• External respiration

What is the primary role of hemoglobin in the respiratory system?

• To filter air

• To transport oxygen and carbon dioxide

• To produce surfactant

• To regulate tidal volume

Which volume refers to the amount of air remaining in the lungs after a forced exhalation?

• Tidal volume

• Residual volume

• Dead space volume

• Vital capacity

What is the function of the pleurae in the respiratory system?

• To produce surfactant

• To protect and cushion the lungs

• To facilitate gas exchange

• To transport respiratory gases

Which structure is responsible for the transport of air to the alveoli?

• Bronchioles

• Trachea

• Pharynx

• Nasal cavity