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TRACHEA      Stained with haematoxylin and eosin 1 - tunica mucosa 2 - tunica submucosa 3 - fibro-elastic layer 4 - tunica adventitia
TRACHEA      Stained with haematoxylin and eosin 1 - tunica mucosa 2 - tunica submucosa 3 - fibro-elastic layer 4 - tunica adventitia 5 - epithelium of the mucosa 6 - lamina propria of the mucosa 7 - lamina muscularis of the mucosa 8 - glands in the tunica submucosa 9 - hyaline cartilage
TRACHEA      Stained with haematoxylin and eosin 1 - tunica mucosa 2 - tunica submucosa 3 - fibro-elastic layer 5 - epithelium of the mucosa 6 - lamina propria of the mucosa 7 - lamina muscularis of the mucosa 8 - evacuatory ducts of submucosal glands 9 - hyaline cartilage
LUNG      Stained with haematoxylin and eosin 1 - middle diameter bronchus 2 - epithelium of the mucosa 3 - lamina propria of the mucosa 4 - lamina muscularis of the mucosa 5 - tunica submucosa 6 - fibro-elastic layer 7 - tunica adventitia 8 - alveoli 9 - interstitial connective tissue of the lung 10 - glands in tunica submucosa NOTE! There is bronchial system in the lung, from main, or primary, bronchi to bronchioles. Morphologically, there are only two types of bronches in the lung. One type is large and middle diameter bronchi. This type of bronchi have tunica submucosa and fibro-elastic layer. Another type of bronchi is small diameter bronchi. It includes small bronchi and bronchioles. This type has not both submucosal fibro-elastic layers.
LUNG      Stained with haematoxylin and eosin 1 - middle diameter bronchus 2 - epithelium of the mucosa 3 - lamina propria of the mucosa 4 - lamina muscularis of the mucosa 5 - tunica submucosa 6 - fibro-elastic layer 7 - tunica adventitia 8 - alveoli 9 - interstitial connective tissue of the lung 10 - glands in tunica submucosa
LUNG      Stained with haematoxylin and eosin 1 - middle diameter bronchus 2 - epithelium of the mucosa 3 - lamina propria of the mucosa 4 - lamina muscularis of the mucosa 5 - tunica submucosa 6 - fibro-elastic layer 7 - tunica adventitia 8 - alveoli 9 - interstitial connective tissue of the lung 10 - glands in tunica submucosa
LUNG      Stained with haematoxylin and eosin 1 - small diameter bronchus 3 - alveoli
LUNG      Stained with haematoxylin and eosin 1 - small diameter bronchus 2 - alveoli 3 - epithelium of the mucosa 4 - lamina propria of the mucosa 5 - tunica muscularis propria 6 - tunica adventitia
LUNG      Stained with haematoxylin and eosin 1 - middle diameter bronchus 2 - epithelium of the mucosa 3 - lamina propria of the mucosa 4 - lamina muscularis of the mucosa 5 - tunica submucosa 6 - fibro-elastic layer 7 - tunica adventitia 10 - glands in tunica submucosa
LUNG middle diameter bronchus      Stained with haematoxylin and eosin 2 - epithelium of the mucosa 3 - lamina propria of the mucosa 4 - lamina muscularis of the mucosa 5 - tunica submucosa 6 - fibro-elastic layer 7 - tunica adventitia

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