This image shows a single alveolar sac, which is formed by from a group or cluster of alveoli.  Two blood vessels and numerous alveoli can also be seen.

This site was last modified May 10, 2002.    NOTE: These pages are best viewed at a screen size of 800 X 600 pixels.

The address of A/P Lab is:  http://bioweb.uwlax.edu/aplab/      Direct comments or questions to gillis.rick@uwlax.edu