1. The Respiratory System?
What words describe the
respiratory system?
Materials: textbook, diagram of lung
Copyright, 1996 © Dale Carnegie & Associates, Inc.

2. What happens to the cilia
The Path of the Air
Mouth, nose
Pharynx
Trachea
larynx
cartilage
cilia ?
What happens to the cilia
due to smoking?.

4. The Path of the Air -cont
Bronchi
Bronchioles
Alveoli - a blind sac
capillaries
Hemoglobin ?
What happens to the cilia
due to smoking?.

8. Oxygen moves into capillaries

9. Can you label the diagram?
Diaphragm
Bronchi
Larynx
Pharynx
Trachea
Capillaries
Lung
Alveoli
Air Space
Nose/nostril
Esophagus
Bronchiole

10. Can you fill in the diagram of the lung?
1 nose
2 pharynx (nasal cavity)
3 glottis (pharynx)
4 epiglottis
5 larynx
6 esophagus
7 trachea
8 lung
9 pleural membrane
10 bronchi
11 elastic tissue, bronchiole
12 diaphragm
13 alveolus
14 blood vessel
15 capillary
16 bronchioles
17 air space (alveolus)

11. Lung movement caused by ….
The diaphragm
Intercostal muscles
Lung tissue is not muscle tissue ?
What is the shape of the diaphragm
when it is relaxed?

12. Breathing
Animation

13. Exhalation - Inhalation
Respiration Animation
diaphragm
Deflated lung
Relaxed diaphragm
Inflated lung
contracted diaphragm
Mary Wang ‘03

14. Nose
Pharynx
Larynx
Trachea
Alveoli
Bronchiole
Diaphragm

15. How breathing is controlled.
Read page 840 and take notes.
Respiration Animation

16. How breathing is controlled.
Carbon dioxide increases
Respiratory center in medulla oblongota detects increase.
Autonomic nerve to diaphragm fires.
Diaphragm contracts. ?
What happens if you hold your
breath for a long time?

17. The Respiratory System
To Do today?
Feel alive! Take deep breaths!
Materials: textbook, diagram of lung
Copyright, 1996 © Dale Carnegie & Associates, Inc.