Marc Perkins's Biology homepage

Gastric mill

Crayfish image

Image by: Bryan Yang; ~10x magnification

Closeup of the gastric mill of a preserved crayfish. You are seeing the stomach of a crayfish dissected open - the gastric mill is composted of three teeth that are INSIDE the stomach and are used to aid in the digestion of food. In another picture (click here to see it) I've zoomed in on the teeth

Copyright Info / Educational Use | This page was updated on 12/11/2004