Notes
The mucosa of the ileum is typical of the small intestine, but with the addition of conspicuous patches of lymphoid tissued called Peyer's patches (named after Johann Conrad Peyer, b. 1653), which may protrude into the lumen and also extend into the submucosa (as illustrated here in a non-human example).
Muscularis externa of the ileum has the standard inner circular and outer longitudinal layers of smooth muscle.
Related examples:
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Comments and questions: dgking@siu.edu
SIUC / School
of Medicine / Anatomy / David
King
https://histology.siu.edu/erg/GI196b.htm
Last updated: 26 May 2022 / dgk