Changes

==Histology==

==Histology==

[[Image:Gizzard Histology.jpg|thumb|right|250px|Gizzard Histology- Dr. Thomas Caceci]]

[[Image:Gizzard Histology.jpg|thumb|right|250px|Gizzard Histology- Dr. Thomas Caceci]]

*Thin, but tough mucous membrane

The gizzars has a thin, but tough '''mucous membrane'''. It has a pale, thin lining raised into ridges with 3 layers of '''lamina muscularis'''. The gizzard has cuboidal epithelium and some tubular glands present. There is a thick keratin layer to protect the muscle.

The '''cuticle of koilin''' is a carbohydrate complex is present due to the solidifying of the glandular secretion. It is replenished as it is worn down.  

 

 

 

 

*Cuticle of koilin a carbohydrate complex is present due to the solidifying of the glandular secretion. It is replenished as it is worn down.

 

==Species Differences==

==Species Differences==