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Rumen - Anatomy & Physiology (view source)

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~~{{toplink~~

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~~|backcolour =BCED91~~

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~~|linkpage =Alimentary - Anatomy & Physiology~~

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~~|linktext =Alimentary System~~

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~~|maplink =~~

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~~|subtext1=STOMACH AND ABOMASUM~~

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~~|sublik1=Stomach and Abomasum - Anatomy & Physiology~~

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~~<br>~~

[[Image:Rumen Topography Sheep.jpg|thumb|right|150px|Rumen Topography (Sheep) - Copyright RVC 2008]]

==Introduction==

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*The lymph drains to larger atrial nodes between the cardia and [[The Omasum - Anatomy & Physiology|omasum]], then to the cistera chyli

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==~~Histology==~~

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==[[Rumen - Histology|Histology]]==

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[[~~Image:~~Rumen Histology ~~Sheep.jpg~~|~~thumb|right|150px|Rumen~~ Histology ~~(Sheep) - Copyright RVC 2008]]~~

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*Keratinised stratified squamous epithelium

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*Non-glandular

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*No lamina muscularis

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*2 thick layers of tunica muscularis- inner circular and outer longitudinal

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*Interior surface of the rumen forms numerous papillae

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**Papillae can be long and foliate

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**Papillae can be short and pointed

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**Up to 6mm in length

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**Animals fed on rough grass or in the dry season have longer papillae

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**Animals fed on digestible feed or in the wet season have shorter papillae (1-2mm in length)

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**Fewer dorsally

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**Increase surface area for [[Volatile Fatty Acids - Anatomy & Physioogy|volatile fatty acid]] absorption

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*The upper keratinised layer of papillae protects against abrasion

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*The deeper layers of papillae metabolise the [[Volatile Fatty Acids - Anatomy & Physioogy|volatile fatty acids]]

==Rumen Microbes==

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[[Category:~~Alimentary System~~ - Anatomy & Physiology]]

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[[Category:Stomach - Anatomy & Physiology]]

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Rumen - Anatomy & Physiology (view source)

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