Digital Histology
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Alveolus

This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x

Alveolar lumens <p>This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x</p>

Alveolar lumens

This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x
Interalveolar septum <p>This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x</p>

Interalveolar septum

This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x
- Capillaries <p>This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x</p>

- Capillaries

This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x
- Connective tissue core <p>This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x</p>

- Connective tissue core

This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x
- Fibroblast <p>This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x</p>

- Fibroblast

This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x
- Type I cells <p>This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x</p>

- Type I cells

This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x
- Endothelial cells <p>This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x</p>

- Endothelial cells

This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x
- Blood cells <p>This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x</p>

- Blood cells

This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x
- Air-blood barrier <p>This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x</p>

- Air-blood barrier

This electron micrograph shows many of the components of the interalveolar septum illustrated in the cartoon. The attenuation of type I cell cytoplasm and the protrusion of the capillaries are most evident. Surfactant is not preserved during fixation of lung tissue, and no septal cells nor macrophages are present in this image. 4000x
Main SlideAlveolar lumensInteralveolar septum - Capillaries - Connective tissue core - Fibroblast - Type I cells - Endothelial cells - Blood cells - Air-blood barrier