Respiratory System

Which path does air typically follow when you inhale?

• Nasal cavity -> Larynx -> Pharynx -> Trachea

• Nasal cavity -> Pharynx -> Larynx -> Trachea

• Pharynx -> Nasal cavity -> Larynx -> Trachea

• Larynx -> Nasal cavity -> Pharynx -> Trachea

What is the main function of the cartilage rings in the trachea?

• To filter dust and contaminants from the air.

• To produce sound for speech.

• To keep the airway open for air to travel through.

• To exchange gases with the blood.

Where in the lungs does the exchange of oxygen and carbon dioxide take place?

• Bronchioles

• Trachea

• Alveoli

• Primary Bronchi

What happens when the concentration of carbon dioxide in the blood increases?

• The blood becomes more alkaline, and breathing slows down.

• The blood becomes more acidic, and breathing speeds up.

• The blood becomes more alkaline, and breathing speeds up.

• The blood becomes more acidic, and breathing slows down.