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Gizzard - Anatomy & Physiology
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Revision as of 17:12, 3 July 2008
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[[Image:Gizzard Anatomy.jpg|thumb|right|150px|Gizzard Anatomy - Prof. A. Goodship]]
[[Image:Gizzard Anatomy.jpg|thumb|right|150px|Gizzard Anatomy - Prof. A. Goodship]]
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*Mechanical reduction of tougher material through powerful muscular development
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*Contacts the liver
*Contacts the liver
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*Roughly on the midline of the bird
*Roughly on the midline of the bird
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*Lens shaped
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*Interior elongated by cranial and caudal blind sacs
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*Cranial blind sac contacts [[The Proventriculus - Anatomy & Physiology|proventriculus]]
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*Pylorus on right surface next to cranial blind sac
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*Two thick masses of muscle that insert on tendonous surfaces
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*In seed eating birds grit is digested to increase grinding down of food particles
==Histology==
==Histology==
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*Thin, but tough mucous membrane
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*Cuboidal epithelium
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*Tubular glands
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*Cuticle of koilin a carbohydrate complex is present due to the solidifying of the glandular secretion. It is replenished as it is worn down.
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*Thick keratin layer to protect muscle
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*No gizzard in stringiformes (owls etc.)
*No gizzard in stringiformes (owls etc.)
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==Other Information==
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*Grit should be provided in seed eating birds diet. It is radiodense and marks out where the gizzard is located on radiographs.
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