The lungs and pulmonary system

What is the function of respiration?

• To drive cellular functions

• To release carbon dioxide

• To metabolize food into ATPs

• To release oxygen

Where does the process of respiration start?

• Pharynx

• Nasal cavity

• Larynx

• Oral cavity

What is the function of the trachea?

• To be a pipe for air

• To absorb oxygen

• To divide into bronchi

• To release carbon dioxide

What are the smaller tubes that the bronchi split into?

• Alveoli

• Esophagus

• Bronchioles

• Capillaries

What are the super small air sacs at the end of the bronchioles called?

• Alveoli

• Bronchi

• Capillaries

• Esophagus

How thick are the walls of the alveoli?

• Four cells thick

• Two cells thick

• One cell thick

• Three cells thick

What is the function of the pulmonary arteries?

• To carry de-oxygenated blood to the heart

• To carry oxygenated blood to the heart

• To absorb oxygen from the alveoli

• To release carbon dioxide into the alveoli

What is the special word for the arteries and veins related to the lungs?

• Cardiac

• Pulmonary

• Systemic

• Coronary

What happens to the thoracic diaphragm when we breathe in?

• It contracts and arches down

• It relaxes and creates more space

• It becomes rigid and restricts the lungs

• It expands and pushes the air out

What causes air to flow into the lungs when we breathe in?

• High pressure inside the lungs

• Low pressure inside the lungs

• High pressure outside the lungs

• Low pressure outside the lungs