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Abomasum - Anatomy & Physiology (view source)
Revision as of 17:55, 10 December 2010
, 17:55, 10 December 2010no edit summary
Single lymph nodules are present at the junction between the epithelium and the lamina propria. Numerous small lymph nodes are scattered in the abomasal curvatures. The lymph drains to larger atrial nodes between the '''cardia''' and '''[[Omasum - Anatomy & Physiology|omasum]]''', then to the hepatic lymph nodes.
Single lymph nodules are present at the junction between the epithelium and the lamina propria. Numerous small lymph nodes are scattered in the abomasal curvatures. The lymph drains to larger atrial nodes between the '''cardia''' and '''[[Omasum - Anatomy & Physiology|omasum]]''', then to the hepatic lymph nodes.
==Histology==
[[Image:Abomasum Histology Sheep.jpg|thumb|right|150px|Abomasum Histology (Sheep) - Copyright RVC 2008]]
*Simple columnar epithelium
*3 layers of tunica muscularis- inner oblique, middle circular and outer longitudinal
*Lamina muscularis thicker (3 separate layers)
*Gastric glands in lamina propria of mucosal layer in pyloric region (lighter part)
*Heavily coated by mucous for protection
*Submucosa contains loose connective tissue, many blood vessels and unilocular adipocytes
*Deep gastric pits
*Coiled glands in lamina propria opening into gastric pits
*Pink inner mucosa
*Rugae are present in the pyloric region
*Torus (large swelling) is present at the pyloric passage to narrow the lumen
*Dark mucosa of fundus and body contain peptic glands
==Species Differences==
==Species Differences==