1. ATB Get a text book, and turn to page 864.
On the Body Systems Illustration paper, draw and label the heart, lungs, and major blood vessels (veins and arteries).
On the table on the back of the Body Systems Illustration paper, add the heart, lungs, and veins/arteries (if you don’t know their function, look them up in the Glossary)

2. 1. How much air do you think you can hold in your lungs?

3. 1. How much air do you think you can hold in your lungs?
2. How does pollution affect your lung volume?

6. Respiratory System
Primary Function: obtaining oxygen and removing carbon dioxide
Other functions: Filter air, produce sounds, sense of smell, regulation of blood pH

7. Respiration
The process of gas exchange between the atmosphere and body cells
Steps of respiration in humans:
A. Move air into the lungs
B. Gas exchange between blood and air
C. Gas transport through the blood
D. Gas exchange between the blood and body cells

8. Respiratory System

9. Lung Structure
The alveoli are small balloon-like structures that are attached to the bronchioles.
At the alveoli, O2 passes from the lungs into the blood, and CO2 passes from blood into the lungs (is exhaled).

10. Flow of Air

11. Inhalation

12. Exhalation

14. Respiration System Lab: Lung Volume
Objectives:
Measure the TIDAL VOLUME and VITAL CAPACITY of your lungs.
Compare your measurements with your ESTIMATED tidal volume and vital capacity.
Tidal Volume: How much air you breathe in a normal breath
Vital Capacity: maximum amount of air you can breathe

15. Circulatory and Respiratory Systems Video
How do the circulatory and respiratory systems work together to get O2 into your cells and remove CO2?