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> | |
| − | + | [[Small Intestine - Anatomy & Physiology|'''BACK TO SMALL INTESTINE - ANATOMY AND PHYSIOLOGY]]</center></big> | |
| − | + | ==Structure== | |
| − | + | *The ileum is the terminal portion of the small intestine. | |
| + | *The boundary between the ileum and [[Jejunum - Anatomy & Physiology|jejunum]] is arbitrarily distinguished by the position of the ileocaecal fold. | ||
| + | *It is more muscular and firmer than the [[Jejunum - Anatomy & Physiology|jejunum]]. | ||
| + | *It terminates at the ileocaecocolic junction. | ||
| − | + | ==Function== | |
| + | |||
| + | *Mainly absorptive, much less digestion occurs than in the duodenum and jejunum. | ||
==Vasculature== | ==Vasculature== | ||
| − | The cranial mesenteric artery supplies blood to the ileum. | + | *The cranial mesenteric artery supplies blood to the ileum. |
| + | *see [[Jejunum - Anatomy & Physiology|jejunum]] | ||
==Histology== | ==Histology== | ||
| − | '''[[Peyer's Patches - Anatomy & Physiology|Peyer's Patches]]''', part of the | + | *'''[[Peyer's Patches - Anatomy & Physiology|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. | ||
==Links== | ==Links== | ||
| − | + | [[The Small and Large Intestines|Pathology of the Small and Large Intestines]] | |
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Revision as of 12:04, 16 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.