Respiratory System

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

• air/oxygen

• oxygen/carbon dioxide

• carbon dioxide/waste

• waste/air

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 

The air sacs that are covered with capillaries that separate gases we need from gases we don't need.

• bronchi
• lungs
• oxygen
• alveoli

What material in a lung model represents the diaphragm

• Y plastic tubes

• the plastic jar

• the plastic sheet

• 2 small plastic bags

Tiny tubes that branch off of bronchi

• capillaries
• alveoli
• bronchioles
• bronchus

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

• trachea

• bronchi

• alveoli

• diaphragm

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

• bronchi
• lungs
• oxygen
• alveoli

Name the structure labeled #6

• lungs 
• trachea 
• diaphragm 
• alveoli 

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 

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

• pharynx
• trachea
• epiglottis
• larynx