Exploring the Lungs Activity Name: ________________________ Date: _________

Part A – Introduction to the Lungs

A. Go to the following article and answer the questions below.http://science.nationalgeographic.com/science/health-and-human-body/human-body/lungs-article.html

1. What does the article mean when it says that the lungs “are the only internal organs that are constantly exposed to the external environment.”?

2. Name and describe the three parts of the lungs that are mentioned in the “Intricate Construction” part of the article.1.

2.

3.

3. What part of the body mainly does the actual part of breathing? 

Part B – Anatomy of the Lungs

B. Click on the “LUNG ANATOMY” tab at the bottom left hand side of the illustration. Fill in the chart about the anatomy of the lungs that follows.

Lung Structure Name Describe the Structure

1.____________________________

Trachea

2.

3. _____________________________

Bronchi 4.

5. _____________________________

6. ______________________________

Bronchioles 7.

Blood Vessels 8.

Part C – Function of the Lungs

C. Click on the “LUNG FUNCTIONS” tab at the bottom left hand side of the illustration. Fill in the flow chart about how breathing work.

1. Breathe In Lungs fill with 2. _________

3._________Inflate

4. __________ enters the blood

stream

co2 enters the 5. __________

Breathe 6. _____

Part D – Asthma

D. Click on the “EFFECTS of ASTHMA” tab at the bottom left hand side of the illustration.

1. Write a detailed description of what happens during an asthma attack.

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2. DRAW and LABEL the differences between an open airway and a restricted airway.