1. Chapter 10: The Pulmonary System Waggy
Anatomy & Physiology
Chapter 10: The Pulmonary System
Waggy

2. Key Concepts Functions of the Pulmonary System
Follow the flow of air through the Upper Respiratory system
Follow the flow of air through the Lower Respiratory system
Muscles used to breathe
Respiratory control
Disorders of the pulmonary system

3. Functions of the Pulmonary System

4. The respiratory system is divided into
1. upper respiratory system,
2. lower respiratory system,

5. The Upper Respiratory System
Nasal hairs:
Mucous secretions
Nasal cavity opens into nasopharynx

6. The nasopharynx is shared by digestive and respiratory systems
Extends from nose to esophagus & has 3 sections:
1. Nasopharynx:
2. Oropharynx:
3. Laryngopharynx:

7. From the pharynx air enters the larynx:
During swallowing:

8. Sound Production
As air passes through the glottis it vibrates vocal folds & produces sound waves

9. The Lower Respiratory System
From the upper respiratory system, air enters the trachea (windpipe)

10. The Primary bronchi begins to branch to form the Bronchial Tree

12. The Bronchial Tree

13. Left and right lungs
The root
The base

14. The Right Lung- Has 3 lobes:
The Left Lung- Has 2 lobes:

15. The lobes of the lungs split into Pulmonary Lobules,

17. Each lobule receives an arteriole from the pulmonary circuit and a venule that return to the heart

18. The Respiratory Cycle Consists of: 1. inspiration 2. Expiration
Tidal Volume:

19. Muscles of Inhalation
Diaphragm:
External intracostal muscles:

20. Muscles of Active Exhalation

21. Respiratory Centers of the Brain
Have both voluntary and involuntary components:

22. Diseases of the Pulmonary System
Respiratory Distress
Pneumonia
Bronchitis:

23. Asthma:
Pulmonary Embolism:
SIDS:
Apnea:

24. Laryngeal Spasm:
Sneezing & coughing:
Pneumothorax:
Atelectasis:

25. The Effects of Aging Elastic tissues deteriorate: Arthritic changes:
Emphysema:

26. The Respiratory Defense System
Goblet cells and mucous glands:
Cilia:
Filtration:

27. The End