Leech Dissection: Step 11

The isolated section is stretched out with forceps, then pinned with the outer skin facing up. Care is taken to avoid damaging the skin or the nervous system. The preparation is now complete. The ganglion should be visible through the hole in the section.

A small section of the leech is pinned in a clear dish. The leech's skin is facing up, and a small hole in the skin is illuminated by a bright light.