The Jejunum and Ileum

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The duodenum | Main Anatomy Index | Large intestine

Last updated 30 March 2006

The Jejunum and Ileum

  Jejunum Ileum
Position Upper left abdomen Lower right abdomen
Extent 2/5 3/5
External feel and Appearance Thick, wide, vascular Thin, narrow, pale
Peyer's patches Few Many
Vascular arcades Few Many
Vasa recti Long Short
Mesenteric fat Less More

 

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Peritoneal Attachment of the Jejunum and Ileum

  1. The horizontal (3rd) part of the duodenum
  2. Aorta
  3. Inferior vena cava
  4. Psoas major muscle
  5. Right ureter
  6. Right testicular (or ovarian) vessels
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Arterial Supply of the Jejunum and Ileum

 

Venous Drainage of the Jejunum and Ileum

 

Lymphatic Drainage of the Jejunum and Ileum

 

Innervation of the Jejunum and Ileum

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Michael Tam (c) 1998