Respiratory System

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body

• o break down food and absorb nutrients

• to remove oxygen from the body and deliver carbon dioxide

What are the main organs of the respiratory system that allow us to breathe and for gas exchange to happen?

• diapragm

• lungs

• trachea

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

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

These are the two 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

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

• Pharynx

• Trachea

• Epiglottis

A chamber behind the nose and mouth that leads to the trachea

• pharynx
• trachea
• epiglottis
• larynx

Tiny tubes that branch off of bronchi

• capillaries
• alveoli
• bronchioles
• pluera

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