Difference between revisions of "Ileum - Anatomy & Physiology"
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| Line 19: | Line 19: | ||
==Vasculature== | ==Vasculature== | ||
| + | *The cranial mesenteric artery drains the ileum. | ||
| + | *see [[Jejunum - Anatomy & Physiology|jejunum]] | ||
==Innervation== | ==Innervation== | ||
Revision as of 14:52, 10 July 2008
Introduction
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
Vasculature
- The cranial mesenteric artery drains the ileum.
- see jejunum
Innervation
Lymphatics
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.