Respiratory system

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Respiratory system

  1. 1. LOGO Respiratory System Arba P. Ramadani
  2. 2. Respiratory System Structural Upper Function Lower Conducting zone Respiratory zone
  3. 3. NOSE
  4. 4. NOSE Eksternal bony&cartilaginous framework function? Internal nasal cavity, vestibule, & septum
  5. 5. PHARYNX levelfive.com/ZINA/IMAGES/Anatomical/pharynx.jpg
  6. 6. PHARYNX Function?? Regio: nasopharynx, oropharynx, laryngopharynx
  7. 7. LARYNX
  8. 8. LARYNX Voice box Short passageway, connect the laryngopharynx with the trachea Larynx wall 9 pieces cartilage eg. epiglotis
  9. 9. TRACHEA
  10. 10. TRACHEA Windpipe, tubular passageway for air Layers: mucosa, submucosa, hyaline cartilage, adventitia C-shaped cartilage ring control diameter change maintain efficient airflow
  11. 11. BRONCHI graphics8.nytimes.com/.../health/adam/1103.jpg
  12. 12. LUNGS www.avastin.com/.../lung/learn/develops/index.m
  13. 13. LUNGS Paired cone-shaped organ Pleural membrane parietal p., visceral p., p. cavity Lobes 3 lobes on right & 2 lobes on left Blood supply pulmonary&bronchial arteries Hypoxia ventilation-perfusion coupling
  14. 14. Terminal bronchioles Alveolar sacs Alveolar duct Alveoli
  15. 15. webanatomy.net/.../respiratory/alveolar_sacs.jpg
  16. 16. RESPIRATION Pulmonary ventilation External (pulmonary) respiration Internal (tissue) respiration Respiration
  17. 17. PULMONARY VENTILATION Air moves into or out of lungs pressure differences air Inhalation contraction of diaphragm (75%) & external intercostals (25%) lungs expand lung vol >> decrease lung pressure Exhalation passive process inspiratory muscles relax lung vol << alveolar pressure increases
  18. 18. Factors affecting pulmonary ventilation Surface tension of alveolar fluid Compliance of the lungs Airway resistance
  19. 19. P O2 & P CO2
  20. 20. Rate of pulmonary &systemic gas exchange Partial pressure difference Surface area available Diffusion distance Molecular weight & solubility
  21. 21. Breathing Pattern Eupnea Costal breathing/ shallow/chest Diaphragmatic breathing / deep
  22. 22. LUNG VOLUME
  23. 23. Transport O2 & CO2
  24. 24. Affinity Hb-O2 Acidity (pH) PCO2 Temperature BPG
  25. 25. Control of Respiration 1 2 Medullary Rhythmicity Area Pneumotaxic Area 3 Apneustic Area
  26. 26. Regulation of the respiratory center Cortical influence Inflation reflex Propioceptor Chemoreceptor Others

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