RESPIRATORY SYSTEM             BY         SARAH PAUL   ARPITHA BABU THYKATIL   JANVI AMARDEEP JOSEPH
The Respiratory System           Basic functions of the respiratory system                 Supplies body with oxygen    ...
Functional Anatomy of the                      Respiratory System           Respiratory organs                 Nose, nas...
Organs of the Respiratory                             SystemCopyright © 2008 Pearson Education, Inc., publishing as Benjam...
The Nose           Provides an airway for respiration           Moistens and warms air           Filters inhaled air   ...
The Larynx           Three functions                 Voice production                 Provides an open airway          ...
The Trachea           Descends into the mediastinum           C-shaped cartilage rings keep airway open           Carin...
The TracheaCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings   Figure 21.7a, b
Bronchi           Bronchial tree                 Extensively branching respiratory passageways                        P...
BronchiCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings   Figure 21.8a
Structures of the Respiratory                           ZoneCopyright © 2008 Pearson Education, Inc., publishing as Benjam...
Structures of the Respiratory                           ZoneCopyright © 2008 Pearson Education, Inc., publishing as Benjam...
Anatomy of Alveoli and the                   Respiratory MembraneCopyright © 2008 Pearson Education, Inc., publishing as B...
Location of Lungs in Thoracic                         CavityCopyright © 2008 Pearson Education, Inc., publishing as Benjam...
Bronchopulmonary SegmentsCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings   Figure 21.15 (2 of 2)
Blood Supply and Innervation of                  the Lungs           Pulmonary arteries                 Deliver oxygen-p...
Disorders of Respiratory                               Structures           Cystic fibrosis (CF) – inherited disease     ...
Aging of the Respiratory System           Number of glands in the nasal mucosa declines           Nose dries            ...
Respiratory system orginal
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Respiratory system orginal

  1. 1. RESPIRATORY SYSTEM BY SARAH PAUL ARPITHA BABU THYKATIL JANVI AMARDEEP JOSEPH
  2. 2. The Respiratory System  Basic functions of the respiratory system  Supplies body with oxygen  Disposes of carbon dioxide  Four processes involved respiration  Pulmonary ventilation  External respiration  Transport of respiratory gases  Internal respirationCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
  3. 3. Functional Anatomy of the Respiratory System  Respiratory organs  Nose, nasal cavity, and paranasal sinuses  Pharynx, larynx, and trachea  Bronchi and smaller branches  Lungs and alveoliCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
  4. 4. Organs of the Respiratory SystemCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Figure 21.1
  5. 5. The Nose  Provides an airway for respiration  Moistens and warms air  Filters inhaled air  Resonating chamber for speech  Houses olfactory receptorsCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
  6. 6. The Larynx  Three functions  Voice production  Provides an open airway  Routes air and food into the proper channels  Superior opening is  Closed during swallowing  Open during breathingCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
  7. 7. The Trachea  Descends into the mediastinum  C-shaped cartilage rings keep airway open  Carina  Marks where trachea divides into two primary bronchi  Epithelium  Pseudostratified ciliated columnarCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
  8. 8. The TracheaCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Figure 21.7a, b
  9. 9. Bronchi  Bronchial tree  Extensively branching respiratory passageways  Primary bronchi (main bronchi)  Largest bronchi  Right main bronchi  Wider and shorter than the leftCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
  10. 10. BronchiCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Figure 21.8a
  11. 11. Structures of the Respiratory ZoneCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Figure 21.9a
  12. 12. Structures of the Respiratory ZoneCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Figure 21.9b
  13. 13. Anatomy of Alveoli and the Respiratory MembraneCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Figure 21.10b
  14. 14. Location of Lungs in Thoracic CavityCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Figure 21.12a, b
  15. 15. Bronchopulmonary SegmentsCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Figure 21.15 (2 of 2)
  16. 16. Blood Supply and Innervation of the Lungs  Pulmonary arteries  Deliver oxygen-poor blood to the lungs  Pulmonary veins  Carry oxygenated blood to the heart  Innervation  Sympathetic, parasympathetic, and visceral sensory fibers  Parasympathetic – constrict airways  Sympathetic – dilate airwaysCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
  17. 17. Disorders of Respiratory Structures  Cystic fibrosis (CF) – inherited disease  Exocrine gland function is disrupted  Respiratory system affected by  Oversecretion of viscous mucus  Epistaxis – nosebleed  Epiglottitis – inflammation and swelling of the epiglottisCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
  18. 18. Aging of the Respiratory System  Number of glands in the nasal mucosa declines  Nose dries  Produces thickened mucus  Thoracic wall becomes more rigid  Lungs lose elasticity  Oxygen levels in the blood may fallCopyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings

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