Changes

 

[[Image:Highland Cow.jpg|thumb|right|150px|Ruminant picture - Copyright nabrown RVC]]

[[Image:Highland Cow.jpg|thumb|right|150px|Ruminant picture - Copyright nabrown RVC]]

__TOC__  

__TOC__  

The ruminant stomach occupies most of the left hand side of the abdomen. It is a vast structure, holding up to 60 litres in an adult cow. The rumen holds 80%, reticulum 5%, omasum 8% and abomasum 7% in larger ruminants. In smaller ruminants the proportions are slightly different, with the rumen holding 75%, reticulum 8%, omasum 4% and abomasum 13%.

The ruminant stomach occupies most of the left hand side of the abdomen. It is a vast structure, holding up to 60 litres in an adult cow. The rumen holds 80%, reticulum 5%, omasum 8% and abomasum 7% in larger ruminants. In smaller ruminants the proportions are slightly different, with the rumen holding 75%, reticulum 8%, omasum 4% and abomasum 13%.

The different compartments of the ruminant stomach develop from the foregut spindle in foetal life. During embryogenesis and after birth the [[Abomasum - Anatomy & Physiology|abomasum]] is the largest of the compartments (over half of the weight and capacity of the four stomachs) due to the [[Oesophageal Groove|oesophageal groove]] directing milk from the oesophagus to the [[Rumen - Anatomy & Physiology|rumen]] into the abomasum, bypassing the [[Reticulum - Anatomy & Physiology|reticulum]].

The different compartments of the ruminant stomach develop from the foregut spindle in foetal life. During embryogenesis and after birth the [[Abomasum - Anatomy & Physiology|abomasum]] is the largest of the compartments (over half of the weight and capacity of the four stomachs) due to the [[Oesophageal Groove|oesophageal groove]] directing milk from the oesophagus to the abomasum, bypassing the rumen, reticulum and omasum.

==Physiology==

==Physiology==

{{Learning

{{Learning

|flashcards = [[:Category:Ruminant Stomach Anatomy & Physiology Flashcards|Ruminant Stomachs Flashcards]]

|flashcards = [[:Category:Ruminant Stomach Anatomy & Physiology Flashcards|Ruminant Stomachs Flashcards]]

|OVAM = [http://www.onlineveterinaryanatomy.net/content/development-ruminant-forestomachs Image Showing Foetal Development of Ruminant Forestomachs In Situ]<br>[http://www.onlineveterinaryanatomy.net/content/goat-stomach-opened-left-view Left Sided View of Sectioned Goat Stomachs]

|OVAM = [http://www.onlineveterinaryanatomy.net/content/development-ruminant-forestomachs Image Showing Foetal Development of Ruminant Forestomachs In Situ]<br>[http://www.onlineveterinaryanatomy.net/content/goat-stomach-opened-left-view Left Sided View of Sectioned Goat Stomachs]<br>[http://www.onlineveterinaryanatomy.net/content/goat-stomach-opened-right-view Right Sided View of Sectioned Goat Stomachs]

}}

}}

 

[[Category:Stomach - Anatomy & Physiology]]

[[Category:Stomach - Anatomy & Physiology]]

[[Category:Alimentary Anatomy - Cattle]]

[[Category:Alimentary Anatomy - Cattle]]

[[Category:A&P Done]]

[[Category:A&P Done]]