Lateral view of a slightly older larva in optical section.
Optical section of gizzard of Hislopia lacustris, with contained green cysts, x 240.
Gemmule of Spongilla carteri (from Calcutta), as seen in optical section, x 140.
Gemmule of Spongilla proliferens as seen in optical section (from Calcutta), x 140.
In optical section "bubble-cells" have a certain resemblance to porocytes, but the cell is of course imperforate and not flattened.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "optical section" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.