The Respiratory System

What is the main function of the respiratory system?

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

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

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

The air sacs that are covered with capillaries where gas exchange takes place are found in..?

• bronchi
• lungs
• oxygen
• alveoli

What is the tube that is also known as your wind pipe?

• esophogus
• bronchi
• trachea
• alveoli

The larynx is also known as the...?

• Voice box

• Passage to the lungs

• Long vein

• Airway

What are the tiny, hairlike projections in the airway that move in a wavelike manner?

• mucus

• vocal cords

• cilia

• flagella

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

• larynx

• pharynx

• trachea

• nose

What is the flap of skin that covers the opening to the windpipe during swallowing?

• Stomach

• Trachea

• Pancreas

• Epiglottis

A disorder of the lungs called ____ causes the bronchi to become restricted (get smaller) so air can't get to the lungs.

• asthma 
• cold
• influenza 
• bronchitis 

When we breathe out the diaphragm...?

• Contracts

• Relaxes