Rumen
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The rumen occupies most of the left half of the abdomen and extends considerably over the median plane to the right
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It extends from the lower part of the 7th or 8th inter costal space to the pelvic inlet
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It is slightly compressed laterally and presents two surfaces, two borders and two extremities
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The parietal surface is convex and is related to the diaphragm, left wall of abdomen and spleen
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The dorsal curvature is convex and is in contact with the dorsal wall and attached to it by peritoneum and connective tissue as far back as fourth lumbar vertebra
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The ventral curvature is also convex and is related to the floor of the abdominal cavity/font>
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The two surfaces are marked by right and left longitudinal grooves dividing it into dorsal and ventral sacs
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The cranial extremity is divided ventrally by a transverse groove into two sacs - dorsal and ventral, of which the dorsal one becomes continuous with the reticulum, curves over the ventral sac, which is rounded and blind/font>
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The junction of the dorsal sac and reticulum is marked by a groove, the rumino reticular groove that is distinct ventrally, the two compartments form a sort of dome - the atrium ventriculi on which the oesophagus terminates
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The caudal extremity extends to the pubis and is related to the intestine and bladder
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It is divided by the deep caudal transverse groove into dorsal and ventral sacs both of which are blind
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The grooves lodge the vessels and nerves of the rumen/font>
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Last modified: Friday, 16 December 2011, 11:10 AM