DATE:
NAME:
CHAPTER 2
CLASS:
BLM 1-36
Organ Systems in Humans:
The Respiratory System
Goal • Review terms related to the respiratory system.
What to Do
Refer to pages 90 and 91 of BC Science 8 to complete this review of the respiratory system.
1. Using the diagram on page 90, label the parts of the respiratory system.
Larynx
Bronchioles
Trachea
Bronchi
Alveoli
Lungs
Diaphragm
2. What is the main tube connecting the mouth to the lungs?
The main tube connecting the mouth and lungs is the Trachea
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3. Which muscle plays a main role in breathing?
The Diaphragm is the main muscle involved in breathing
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4. In which structures does gas exchange occur?
Gas exchange occurs in the Alveoli
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Continued on next page
Copyright © 2006, McGraw-Hill Ryerson Limited, a Subsidiary of the McGraw-Hill Companies. All rights reserved.
This page may be reproduced for classroom use by the purchaser of this book without the written permission of the publisher.
DATE:
NAME:
CLASS:
BLM 1-36
continued
5. What are the main organs of the respiratory system?
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The lungs are the main organs of the respiratory system
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6. Why is the respiratory system important to humans?
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The respiratory system is important because it is the method that we use to get
oxygen into our body, and carbon dioxide (waste) out. The lungs are the place
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where gas exchange takes place between the alveoli and the blood.
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7. Why do you think many different structures are needed by the respiratory system?
The many different structures are needed because each has a specific role in the
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exchange of gases - eg. the trachea is the tube that brings air to the lungs, the alveoli
are the place where gas exchange takes place.
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8. Why does smoking harm your respiratory system?
Various substances inhaled during smoking remains in your lungs after you
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smoke which reduces how efficiently they work. This increases your chances
of getting diseases like Cancer and Emphysema.
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Copyright © 2006, McGraw-Hill Ryerson Limited, a Subsidiary of the McGraw-Hill Companies. All rights reserved.
This page may be reproduced for classroom use by the purchaser of this book without the written permission of the publisher.