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Jejunum - Anatomy & Physiology (view source)
Revision as of 09:06, 11 July 2008
, 09:06, 11 July 2008→Structure
*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).
*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.