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Omasum - Anatomy & Physiology (view source)
Revision as of 17:54, 10 December 2010
, 17:54, 10 December 2010no edit summary
There are numerous small lymph nodes that are scattered in the omasal curvatures. The lymph drains to larger atrial nodes between the cardia and the omasum, then to the cistera chyli.
There are numerous small lymph nodes that are scattered in the omasal curvatures. The lymph drains to larger atrial nodes between the cardia and the omasum, then to the cistera chyli.
==Histology==
[[Image:Omasum Histology Sheep.jpg|thumb|right|150px|Omasum Histology (Sheep) - Copyright RVC 2008]]
*Keratinised stratified squamous epithelium
*Lamellae thrown into leaves
**Different sizes
**Divides the lumen into narrow and uniform recesses
*Firm
*No glands
*Papillae
**Most small and lenticular
**Some large and [[Tongue - Anatomy & Physiology#Types of Papillae|conical]]
*Cicrular tunica muscularis extends into papillae of long laminae
*Lamina muscualris extends into papillae encircling tunica muscularis
*3 smooth muscle layers in papillae so they are very motile
==Species Differences==
==Species Differences==
'''Test yourself with the [[The Stomachs of the Ruminant - Anatomy & Physiology - Flashcards#The Omasum|The Omasum Flashcards]]'''
'''Test yourself with the [[The Stomachs of the Ruminant - Anatomy & Physiology - Flashcards#The Omasum|The Omasum Flashcards]]'''
'''Click here for information on [[Rumen - Anatomy & Physiology|rumen - Anatomy & Physiology]]'''
'''Click here for information on [[Rumen - Anatomy & Physiology|rumen - Anatomy & Physiology]]'''