Respiratory & Circulatory Systems

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body
• to bring oxygen to the body
• to break down food and absorb nutrients
• to remove oxygen from the body and deliver carbon dioxide

When you breathe, your lungs take in ___ and remove ___. 

• air/oxygen
• oxygen/carbon dioxide 
• carbon dioxide/waste 
• waste/air 

What is the function of the bronchi?

• Transport air from nose to lungs
• Transport air from trachea to lungs
• Transport air from lungs to alveoli
• Transport air from alveoli to blood

The two main branches from the trachea (one to each lung)

• bronchi
• alveoli
• capillaries
• bronchioles

The air sacs that are covered with capillaries where gas exchange takes place

• bronchi
• lungs
• oxygen
• alveoli

Within the lungs, the exchange of oxygen and carbon dioxide occurs between the ___ and the capillaries. 

• trachea 
• bronchi 
• alveoli
• diaphragm

Name the organ labeled # 6. 

• alveoli 
• bronchi 
• trachea 
• lungs 

Name the structure labeled #8 

• lungs 
• trachea 
• diaphragm 
• alveoli 

The passageway that is shared by both the digestive and respiratory system is the....

• larynx
• pharynx
• trachea
• nose

Flap of skin that covers the opening to the windpipe during swallowing

• Stomach
• Trachea
• Pancreas
• Epiglottis