Respiratory System

Microscopic sacs are called:

• alveoli
• bronchi
• villi

The breathing muscle is called:

• Epiglottis
• Bronchiole
• Diaphragm

The trachea branches off into two:

• Alveoli
• Bronchi
• Bronchioles

Another name for the throat is called the:

• Nasopharynx
• Pharynx
• Larynx

The Respiratory System is the body's:

• Breathing system
• Food processing system
• Blood transporting system
• System of nerves

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

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

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

• Pharynx

• Trachea

• Epiglottis

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

Given the following structures:
1. larynx
2. nasal cavity
3. pharynx
4. trachea
Which of the following is the correct order that air would flow during inhalation. 

• 1,2,3,4
• 2,3,1,4
• 2,1,3,4
• 4,2,3,1 

What is the site of gas exchange?

• alveoli

• nose

• lung

• bronchi