Lungs

 
Lung development video [Interactive video text]

 

 The laryngotracheal groove itself forms the respiratory tract. Its proximal end forms the trachea, the middle forms the bronchi while the distal forms the lungs. It forms two outpocketing called primary bronchial buds and they goes into the developing pericardioperitoneal canals which will later form the pleural cavities. The buds will differentiate with its surrounding mesenchyme, into bronchi and lungs.

Maturation of the lungs can be divided into four stages

  • Pseudoglandular period

  • Canalicular period

  • Terminal saccular period

  • Alveolar period

 

 

Dissector Rotator Locator 1 Locator 2
Left lung 1 Left lung 2 Left lung 3 Right lung
Right lung Left lung Left lung Right lung

 

 

 

 

 

 

 

  

  

  

Oluwole Ogunranti 

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