![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
Interalveolar septum
An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x
![Alveolar spaces <p>An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x</p>](https://digitalhistology.org/wp-content/uploads/2018/06/O.R.O.07.P01.png)
Alveolar spaces
An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x
![Interalveolar septa <p>An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x</p>](https://digitalhistology.org/wp-content/uploads/2018/06/O.R.O.07.P02.png)
Interalveolar septa
An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x
![Simple squamous epithelium <p>An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x</p>](https://digitalhistology.org/wp-content/uploads/2018/06/O.R.O.07.P03.png)
Simple squamous epithelium
An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x
![Connective tissue core <p>An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x</p>](https://digitalhistology.org/wp-content/uploads/2018/06/O.R.O.07.P04.png)
Connective tissue core
An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x
![Capillaries <p>An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x</p>](https://digitalhistology.org/wp-content/uploads/2018/06/O.R.O.07.P05.png)
Capillaries
An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x
![Endothelium <p>An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x</p>](https://digitalhistology.org/wp-content/uploads/2018/06/O.R.O.07.P06.png)
Endothelium
An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x
![Air-blood barrier <p>An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x</p>](https://digitalhistology.org/wp-content/uploads/2018/06/O.R.O.07.P07.png)
Air-blood barrier
An electron micrograph illustrates the components of the interalveolar septum separating adjacent alveoli. 3000x