The Flow of Air: Respiratory System

The pulmonary airways are:

• respiratory ducts that move the air from the outside to the inside of our bodies and vice versa

• are responsible for gas exchange

• are located inside the lungs

• is where carbon dioxide is created

Oxygen is used in the body to:

• it is not needed

• generate energy from nutrients

• pump the blood in the body

In what part does air become warm and moist and harmful substances are removed?

• pharynx

• larynx

• nasal passage

• trachea

The trachea is

• not in the respiratory system

• responsible for allowing us to talk

• one of two branches that goes into the lung

• made of cartilage rings to keep it strong

These are clusterted sacs where gas exchange occurs

• alveoli

• bronchi

• bronchial tubes

From the alveoli, oxygen

• is taken it to be eliminated from the body

• enters the blood to be delivered to all cells in the body

What is the waste product of respiration?

• oxygen

• water

• carbon dioxide

• there is no waste product

Carbon dioxide travels through the _____ to reach the alveoli and then be eliminated from the body

• blood

• nervous system

• bronchial tubes

After passing through the bronchi, the air travels through the ______ on its way to the alveoli

• trachea

• bronchial tubes

• nasal passage

The trachea divides into two ducts called

• bronchi

• bronchial tubes

• alveoli