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*The jejunum is the longest part of the small intestine.  
 
*The jejunum is the longest part of the small intestine.  
 
*It is highly coiled and occupies the ventral part of the abdominal cavity, filling those parts that are not occupied by other viscera. This produces species variation (see comparative aspects).
 
*It is highly coiled and occupies the ventral part of the abdominal cavity, filling those parts that are not occupied by other viscera. This produces species variation (see comparative aspects).
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*It lies on the abdominal floor, separated from the parietal peritoneum by the greater omentum.
 
*It is suspended by the mesentry (mesojejunum). This conveys the blood vessels and nerves and houses lymph nodes.  
 
*It is suspended by the mesentry (mesojejunum). This conveys the blood vessels and nerves and houses lymph nodes.  
 
**The mesentry converges to its root. This is where the cranial mesenteric artery branches off from the aorta.
 
**The mesentry converges to its root. This is where the cranial mesenteric artery branches off from the aorta.
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