This is normal esophageal squamous mucosa at the left, with underlying submucosa containing mucus glands and a duct surrounded by lymphoid tissue. The muscularis is at the right.
图左边示正常食管鳞状上皮黏膜，黏膜下层内粘液腺体，以及由淋巴组织包围的腺体导管。图右侧示食管肌层。
The proventriculus histological structure was mucosa, submucosa, muscularis and serosa, from the inside to the outside.
前胃组织学结构由内向外依次为黏膜层、黏膜下层、肌层和浆膜层。
The proventriculus histological structure was mucosa, submucosa, muscularis and serosa, from the inside to the outside.
前胃组织学结构由内向外依次为黏膜层、黏膜下层、肌层和浆膜层。
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