Difference between revisions of "Ileum - Anatomy & Physiology"
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<big><center>[[Alimentary - Anatomy & Physiology|'''BACK TO ALIMENTARY - ANATOMY & PHYSIOLOGY''']]</center></big><big><center> | <big><center>[[Alimentary - Anatomy & Physiology|'''BACK TO ALIMENTARY - ANATOMY & PHYSIOLOGY''']]</center></big><big><center> | ||
[[Small Intestine - Anatomy & Physiology|'''BACK TO SMALL INTESTINE - ANATOMY AND PHYSIOLOGY]]</center></big> | [[Small Intestine - Anatomy & Physiology|'''BACK TO SMALL INTESTINE - ANATOMY AND PHYSIOLOGY]]</center></big> | ||
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==Structure== | ==Structure== | ||
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==Function== | ==Function== | ||
| − | *Mainly absorptive | + | *Mainly absorptive, much less digestion occurs than in the duodenum and jejunum. |
==Vasculature== | ==Vasculature== | ||
Revision as of 08:13, 11 July 2008
Structure
- The ileum is the terminal portion of the small intestine.
- The boundary between the ileum and jejunum is arbitrarily distinguished by the position of the ileocaecal fold.
- It is more muscular and firmer than the jejunum.
- It terminates at the ileocaecocolic junction.
Function
- Mainly absorptive, much less digestion occurs than in the duodenum and jejunum.
Vasculature
- The cranial mesenteric artery supplies blood to the ileum.
- see jejunum
Histology
- Peyer's Patches, part of the mucosal associated lymphoid tissue (MALT), are present throughout the ileum and ileocaecal junction.
- They contain B and T lymphocytes.
- B lymphocytes exist in follicles.