Key

BV, blood vessel

Cap, cap of lymphatic nodule

GC, germinal center

Gl, gland

L, lumen

LN, lymphatic nodule ME, muscularis externa Muc, mucosa

S, serosa

Subm, submucosa arrows, muscularis mucosae at base of glands

CHAPTER 16 I Digestive System II: Esophagus and Gastrointestinal Tract 529

Subm m

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