Respiratory System Quiz

What is the primary function of the respiratory system?

• To control body temperature

• To provide oxygen to the bloodstream and remove carbon dioxide

• To circulate blood

• To digest food

Which part of the respiratory system is responsible for splitting into the bronchi?

• Capillaries

• Alveoli

• Bronchioles

• Trachea

What are the tiny sacs at the end of bronchioles called?

• Trachea

• Bronchi

• Alveoli

• Capillaries

During inhalation, where does the air travel after passing through the bronchi?

• Directly into the bloodstream

• Into the alveoli

• Into the heart

• Into the stomach

What happens to carbon dioxide during the gas exchange process in the alveoli?

• It remains in the blood

• It diffuses out of the blood and into the alveoli

• It is converted into oxygen

• It is absorbed into the bloodstream