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Structure Alveolus  Thin Epithelial Layer Surrounded Capillaries Spherical

An alveolus has a thin epithelial layer, is surrounded by capillaries, is spherical, and its inner surface is coated with pulmonary surfactant.

Couche épithéliale mince, entourée de capillaires, sphérique, revêtement de surfactant pulmonaire sur la surface interne.

Front structure of an alveolus 
Back thin epithelial layer, surrounded by capillaries, spherical, pulmonary surfactant coating inner surface 

Tags: 6_4_gas_exchange

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