8.4 POJA-L350. Epithelium of trachea

​8.4  POJA-L350                   

Title: Epithelium of trachea 
 
Description:
Common respiratory epithelium, scheme electron microscopy, mammals. Columnar ciliated cells (1) with up to 200 motile cilia with an organelle-rich apex and in the middle a goblet cell (2) with accumulation of mucus secretion granules in the apex.
Note that all epithelial cells (i.e. junctions) contact the basal lamina. Four basal cells (3) do not extend to the free surface, they are the stem cells for, among others, ciliated cells and  goblet cells. Each population generally contribute about 30% of the total cell population. Endocrine cells (less than 10%) and brush cells are not depicted in this picture.
 
Keywords/Mesh: respiratory tract, respiratory epithelium, trachea, pseudostratified epithelium, cilium, goblet cell, basal cell, 
elastin, histology, electron microscopy, POJA collection

8.4 POJA-L351. Epithelium of trachea

​8.4  POJA-L351

Title: Epithelium of trachea 
 
Description:
Electron microscopy, golden hamster. Columnar ciliated cells (1) with cilia and organelle-rich apex; a goblet cell (2a) with accumulation of mucus secretion granules supranuclearly.
Another goblet cell (2b) appears deprived; one basal cell (3) does not extend to the free surface. Light-grey aggregations of elastin (*) intermingled with collagen under the basal lamina of the epithelium.
 

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