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Bronchial Tree Anatomy

Anatomy Of Bronchial Tree 

  • The trachea at the level of sternal angle will divide into two primary branchi.
  • Right bronchus is shorter, wider and vertical.
  • Left bronchus is longer, narrower and oblique.
  • Each Primary bronchus will divide into secondary bronchi which will supply each lobe of the lung.
  • On the right side there are 3 secondary bronchi and on left side there  are 2 secondary bronchi.
  • Each secondary bronchus will divide into teritiory bronchi which will further divide into teritiory bronchioles, alveolar ducts, alveolar sac, and finally alveoli.
  • These are the functional units of lung where exchange of gases will occur.


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