Respiratory System Quiz

What is the main purpose of the respiratory system?

• To regulate body temperature

• To bring oxygen into the body

• To pump blood

• To digest food

What is the name of the dome-shaped muscle that works with the lungs to help you breathe?

• Trachea

• Diaphragm

• Bronchi

• Epiglottis

What is the function of the epiglottis?

• To cover the air-only passage of the pharynx when swallowing

• To carry air into the lungs

• To remove carbon dioxide from the body

• To filter air in the nose

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

• Alveoli

• Bronchioles

• Trachea

• Bronchi

What is the process by which carbon dioxide is created in the cells?

• Diffusion

• Respiration

• Filtration

• Oxygenation

What is the main function of the cilia in the respiratory system?

• To absorb oxygen from the air

• To remove dust and other substances from entering the body

• To regulate body temperature

• To produce carbon dioxide in the cells

Which part of the respiratory system carries both food and air, dividing them into two separate pathways?

• Pharynx

• Trachea

• Bronchi

• Alveoli

What is the total number of alveoli inside a person's lungs?

• 600 million

• 200 million

• 400 million

• 800 million

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

• To produce carbon dioxide in the cells

• To regulate body temperature

• To carry air into the lungs

• To distribute air to the alveoli

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

• To absorb oxygen from the air

• To regulate body temperature

• To help with the process of breathing

• To produce carbon dioxide in the cells