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Normal Human Lung

Notice the open network of air passages and alveoli and the thin walls of the alveoli. 

Normal lung (40X2.0)                                                                      Normal lung (40X2.0)
  
Note part of large vessel (far left) and large airway         
(lower right)

Normal lung (100X2.8)                                                                      Normal lung (400X2.8)
  
                                                                                                  Note capillaries containing RBCs (red cells
                                                                                                  without nuclei) in the alveolar membranes.   

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Copyright 2020: Augustine G. DiGiovanna, Ph.D., Salisbury University, Maryland

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