gizzard
The muscular enlargement of the alimentary canal that has usually thick muscular walls and a tough horny lining for grinding the food and when the crop is present follows it and the proventriculus. [ http://en.wikipedia.org/wiki/Gizzard http://purl.obolibrary.org/obo/BTO_0000520 ]
Term info
gizzard
- gastric mill
- gigerium
organ_slim
BTO also includes: A thickened part of the alimentary canal in some animals (as an insect or an earthworm) that is similar in function to the crop of a bird. However, we are refering to the Aves structure here.
uberon
ventriculus
UBERON:0005052
currently restricted to Aves, but may be found outside - e.g. Pangolins