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| | ==Histology== | | ==Histology== |
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| | + | *'''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. |
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| | ==Species Differences== | | ==Species Differences== |