Respiratory System Quiz

Which of the following is NOT an organ of the respiratory system?

• Esophagus

• Nose

• Trachea

• Larynx

What is the final part of the respiratory system where gas exchange occurs?

• Trachea

• Bronchi

• Lungs—alveoli

• Pharynx

What is the name of the structure that serves as a passageway for both air and food?

• Trachea

• Larynx

• Pharynx

• Nasal cavity

Which organ is directly responsible for the exchange of oxygen and carbon dioxide in the blood?

• Trachea

• Lungs

• Diaphragm

• Pharynx

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

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Which of the following is not a part of the respiratory system?

• Oral cavity

• Diaphragm

• Larynx

• Esophagus

Where do gas exchanges between the blood and external environment occur in the respiratory system?

• Throughout the entire respiratory tract

• Only in the alveoli of the lungs

• In the upper respiratory tract

• In the trachea

What does the upper respiratory tract include?

• Passageways from the trachea to alveoli

• Passageways from the nose to larynx

• Passageways from the mouth to bronchi

• Passageways from the pharynx to lungs

What is the function of the passageways to the lungs?

• To transport oxygen directly to the blood

• To exchange carbon dioxide with oxygen

• To purify, humidify, and warm the incoming air

• To produce vocal sounds

What is the name of the structure in the respiratory system that filters, warms, and moistens air as it is inhaled?

• Bronchiole

• Alveoli

• Trachea

• Nose