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| Food passes from the oral cavity into the [[oesophagus - Anatomy & Physiology|oesophagus]] and from here to the stomach. In evolutionary terms, various adaptations to the anatomy of the stomach reflect the digestive needs of the species, based on their natural diet. The [[Stomach and Abomasum - Anatomy & Physiology|ruminant stomach]] for example, is composed of 4 separate compartments; the rumen, the reticulum, the omasum and the abomasum. The first three compartments are adapted to digest complex carbohydrates with the aid of microorganisms which produce [[Volatile Fatty Acids - Anatomy & Physioogy|volatile fatty acids]] - the major energy source of ruminants. The last compartment, the abomasum resembles the simple [[Forestomach - Anatomy & Physiology|monogastric stomach]] of a carnivore in structure and function. The [[Oesophageal groove|oesophageal groove]] is present in newborn ruminants; it is a channel which directs milk from the oesophagus into the rumen, omasum and then abomasum, bypassing the reticulum. | | Food passes from the oral cavity into the [[oesophagus - Anatomy & Physiology|oesophagus]] and from here to the stomach. In evolutionary terms, various adaptations to the anatomy of the stomach reflect the digestive needs of the species, based on their natural diet. The [[Stomach and Abomasum - Anatomy & Physiology|ruminant stomach]] for example, is composed of 4 separate compartments; the rumen, the reticulum, the omasum and the abomasum. The first three compartments are adapted to digest complex carbohydrates with the aid of microorganisms which produce [[Volatile Fatty Acids - Anatomy & Physioogy|volatile fatty acids]] - the major energy source of ruminants. The last compartment, the abomasum resembles the simple [[Forestomach - Anatomy & Physiology|monogastric stomach]] of a carnivore in structure and function. The [[Oesophageal groove|oesophageal groove]] is present in newborn ruminants; it is a channel which directs milk from the oesophagus into the rumen, omasum and then abomasum, bypassing the reticulum. |
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| + | The stomach passes into the [[Small Intestine - Anatomy & Physiology|small intestine]]small intestine, which is subdivided into three sections; the [[Duodenum - Anatomy & Physiology|duodenum]], the [[Jejunum - Anatomy & Physiology|jejunum]] and the *[[Ileum - Anatomy & Physiology|ileum]]. |
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| + | *[[Camelid Stomach - Anatomy & Physiology|The Camelid Stomach]] |
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− | *[[Eructation - Anatomy & Physiology|Eructation]]
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− | *[[Rumination - Anatomy & Physiology|Rumination]]
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− | *[[Camelid Stomach - Anatomy & Physiology|The Camelid Stomach]]
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− | *[[Small Intestine - Anatomy & Physiology|Small Intestine]]
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− | *[[Duodenum - Anatomy & Physiology|Duodenum]]
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− | *[[Jejunum - Anatomy & Physiology|Jejunum]]
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− | *[[Ileum - Anatomy & Physiology|Ileum]]
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| *[[Large Intestine - Anatomy & Physiology|Large Intestine]] | | *[[Large Intestine - Anatomy & Physiology|Large Intestine]] |
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| *[[Mastication]] | | *[[Mastication]] |
| *[[Deglutition]] | | *[[Deglutition]] |
− | | + | *[[Eructation - Anatomy & Physiology|Eructation]] |
− | | + | *[[Rumination - Anatomy & Physiology|Rumination]] |
| ==The Avian Digestive Tract== | | ==The Avian Digestive Tract== |
| [[Image:Cockatiel.jpg|thumb|right|200px|Cockatiel - Copyright nabrown 2008]] | | [[Image:Cockatiel.jpg|thumb|right|200px|Cockatiel - Copyright nabrown 2008]] |