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lungs bp segments

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lungs bp segments

  1. 1. Lungs & Bronchopulmonary Segments 1 download these slides free of cost from www.slideshare.com
  2. 2. Lungs in situ 2
  3. 3. Borders & Surfaces Apex Base or inferior surface 3 Borders: Anterior Posterior Inferior 2 surfaces: Costal Medial Vertebral Mediastinal 3
  4. 4. 4
  5. 5. Cardiac notch 5
  6. 6. Fissure & lobes of lung 6
  7. 7. Fissure & lobes of Rt lung 7
  8. 8. Fissure & lobes of Lt lung 8
  9. 9. Mediastinal surface: Rt Lung 9
  10. 10. Mediastinal surface: Rt Lung 10
  11. 11. Mediastinal surface: Rt LungMediastinal surface: Rt Lung 11
  12. 12. Mediastinal surface: Lt lung 12
  13. 13. Mediastinal surface: Lt lung 13
  14. 14. Mediastinal surface: Lt lungMediastinal surface: Lt lung 14
  15. 15. Mediastinal surfaces of lungs 15
  16. 16. Hilum of lung 16
  17. 17. Root of lung 17
  18. 18. Areolar tissue Bronchial vessels Pulm plexus Roots of lungs BP nodes 18
  19. 19. Structures at Hilum of lung  Both lungs ( ant to post) pulm vein pulm artery bronchus  Rt lung (sup to inf) Lt lung (sup to inf) eparterial bronchus pulm artery pulm artery principal bronchus hyparterial bronchus pulm vein 19
  20. 20. Right lung Left lung 20
  21. 21. bronchus bronchus Trachea Bronchial Tree 21
  22. 22. Trachea Principal bronchus/primary Lobar bronchus/sec Segmental bronchus/tertiary (10 in each) Bronchus div till cartilage is absent & lumen 1mm/< - BRONCHIOLE Terminal Bronchiole (conducting portion ends) Respiratory bronchiole (respiratory portion begins) Bronchial Tree 22
  23. 23. Lobar Segmental Bronchus Terminal bronchiole Respiratory bronchiole Alveolar ducts Atrium Alveolar Sac Alveolus Many divisions 23
  24. 24. Bronchopulmonary segments  Well defined sectors of lung  Pyramidal, apex towards hilum  10 in each  contains – segmental bronchus pulm & bronchial artery branch  pulm vein is intersegmental  independent bronchopulmonary unit but not individual bronchovascular unit 24
  25. 25. Intersegmental course of pulmonary vein 25
  26. 26. Bronchopulmonary segments: Ant view R L 26
  27. 27. Bronchopulmonary Segments- post view L R 27
  28. 28. 28
  29. 29. Rt lung Lt lung 1. Apical 1. Apical Apicoposterior 2. Post UPPER LOBE 2. Post 3. Ant 3. Ant 4. Lateral 4. Sup. Lingular 5. Medial MIDDLE/ LINGULAR 5. Inf. Lingular 6. Apical 6. Apical 7. Medial basal 7. Medial basal 8. Ant basal LOWER LOBE 8. Ant basal 9. Lat basal 9. Lat. Basal 10. Post basal 10. Post. basal 29
  30. 30. Blood supply: • Arterial – bronchial A Rt side - one – branch of 3rd post intercostal Artery Lt side – two– branch of dsc thoracic aorta • Venous Rt side -- two bronchial veins – drains into Azygos V Lt side --two bronchial veins – drains into Hemizygos Mainly lungs drained by Pulm veins - sup & inf. 30
  31. 31. Bronchial Arteries 31
  32. 32. Lymphatic drainage Superficial – BP nodes Tracheobronchial nodes (hilum) (tracheal bifurcation) Deep – Pulm L nodes BP nodes TB nodes Alveoli has no lymphatics around them Rt subclavian trunk & Lt thoracic duct 32
  33. 33. 33
  34. 34. Nerve supply Ant & post pulm plexus  PS – vagal fibres motor to bronchial muscles & glands; sensory  Symp – T2-T5 spinal segments 34
  35. 35. Applied aspects  Segmentectomy – bronchiectesis, lung abscess, benign tumours  Bronchoscopy & removal of foreign body  Postural drainage – lung abscess  TB lung  Bronchiectasis (chronic dilatation of bronchi with sec infection)  Emphysema (distal to terminal bronchioles distension with destructive changes in their walls)  Lung carcinoma 35
  36. 36. BRONCHOSCOPY 36
  37. 37. Bronchiectasis 37
  38. 38. TUBERCULOSIS LUNG 38
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