View through the middle of a hollow lactating acinus.
From the sciencedaily.com
Red shows the location of the protein NHE1 as a marker for the basolateral membranes, and the blue shows the location of the nuclei of the cells in the acinus.
From the sciencedaily.com
From that, the researchers were able to measure an acinus, estimate the number of acini for each mouse lung and even count the alveoli and measure their surface area.