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Avian Digestive Tract - Anatomy & Physiology (view source)
Revision as of 20:13, 21 June 2010
, 20:13, 21 June 2010→Introduction
The avian ailimentary system differs immensely from the basic mammalian design. Food can move in a retrograde fashion from the [[The Proventriculus - Anatomy & Physiology|proventriculus]] to the [[Crop- Anatomy and Physiology|crop]]. Food can also pass from the [[The Gizzard - Anamtomy & Physiology|gizzard]] back into the [[The Proventriculus - Anatomy & Physiology|proventriculus]] depending on particle size, which is similar to that in mammals. The egestion of bones occurs once the nutritious material has been ingested. During reflux, gastric motility is inhibited and the pellet is expelled through the [[The Avian Oral Cavity - Anatomy & Physiology|oral cavity]] by oesophageal antiperistaltis. This cleans the [[Crop- Anatomy and Physiology|crop]] out and checking the pellet of captive birds should be undertaken daily to assess health.
The avian ailimentary system differs immensely from the basic mammalian design. Food can move in a retrograde fashion from the [[The Proventriculus - Anatomy & Physiology|proventriculus]] to the [[Crop- Anatomy and Physiology|crop]]. Food can also pass from the [[The Gizzard - Anamtomy & Physiology|gizzard]] back into the [[The Proventriculus - Anatomy & Physiology|proventriculus]] depending on particle size, which is similar to that in mammals. The egestion of bones occurs once the nutritious material has been ingested. During reflux, gastric motility is inhibited and the pellet is expelled through the [[The Avian Oral Cavity - Anatomy & Physiology|oral cavity]] by oesophageal antiperistaltis. This cleans the [[Crop- Anatomy and Physiology|crop]] out and checking the pellet of captive birds should be undertaken daily to assess health.
The avian [[The Avian Intestines - Anatomy & Physiology|intestines]] shows some species specific anatomical variety, and the hindgut of the avian digestive system differs from mammalian anatomy as it terminates in the [[The Avian Vent and Cloaca - Anatomy & Physiology|cloaca]]. The external opening through which faecal matter and uric acid is excreted is called the [[The Avian Vent and Cloaca - Anatomy & Physiology|vent]]. The shape of the vent varies depending on species.
[[Image:Avian GIT.jpg|thumb|right|200px|Avian GIT Overview - Copyright Nottingham 2008]]
[[Image:Avian GIT.jpg|thumb|right|200px|Avian GIT Overview - Copyright Nottingham 2008]]
::[[The Avian Hard Palate - Anatomy & Physiology|The Hard Palate]]
::[[The Avian Hard Palate - Anatomy & Physiology|The Hard Palate]]
::[[Avian Liver - Anatomy & Physiology|The Liver]]
::[[Avian Liver - Anatomy & Physiology|The Liver]]