Alveolar capillary, electron micrograph
Micrograph courtesy of Jeff Morton
This micrograph illustrates one capillary within an alveolar wall.
Gas molecules diffusing from alveolar air space to capillary lumen (or vice versa) must pass through the the alveolar epithelium and the capillary endothelium as well as the intervening basement membranes.
Comments and questions: dgking@siu.edu
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https://histology.siu.edu/crr/EM004b.htm
Last updated: 27 May 29 2022 / dgk