gastric mill


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Noun1.gastric mill - thick-walled muscular pouch below the crop in many birds and reptiles for grinding foodgastric mill - thick-walled muscular pouch below the crop in many birds and reptiles for grinding food
pouch, pocket - (anatomy) saclike structure in any of various animals (as a marsupial or gopher or pelican)
References in periodicals archive ?
The nerve-evoked contractions, excitatory junctional potentials (EJPs), and input resistance were measured using the gastric mill 4 (gm4) muscle (nomenclature of Maynard and Dando, 1974), one of the largest muscles in the stomatogastric system.
The stomach of the lobster is formed by strong muscles that cause a grinding action and a gastric mill, containing three large opposing teeth, one dorsal and two laterals, which triturates and sorts the food particles (Phillips et al., 1980).
In ostriches, the muscle contractions in this gastric mill occur two to three times per minute, says Oliver Wings of Germany's University of Bonn.
"Once the plant food was ingested, a gastric mill in the stomach probably provided further mechanical breakdown of the plant," Chatterjee explained.
In lobsters and crabs, the rings were also found in the so-called 'gastric mills,' parts of the stomach with three teeth-like structures used to grind up food.