5,582
edits
Changes
Jump to navigation
Jump to search
Alimentary System Overview - Anatomy & Physiology (view source)
Revision as of 09:34, 22 June 2010
, 09:34, 22 June 2010no edit summary
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.
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]].
*[[Camelid Stomach - Anatomy & Physiology|The Camelid Stomach]]
*[[Large Intestine - Anatomy & Physiology|Large Intestine]]
*[[Large Intestine - Anatomy & Physiology|Large Intestine]]
*[[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]]