Section of the human esophagus. Moderately magnified. The section is transverse and from near the middle of the gullet. - a. Fibrous covering. - b. Divided fibers of longitudinal muscular coat. - c. Transverse muscular fibers. - d. Submucous or areolar layer. - e. Muscularis mucosae. - f. Mucous membrane, with vessels and part of a lymphoid nodule. - g. Stratified epithelial lining. - h. Mucous gland. - i. Gland duct. - m’. Striated muscular fibers cut across.

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Section of the human esophagus. Moderately magnified. The section is transverse and from near the middle of the gullet. - a. Fibrous covering. - b. Divided fibers of longitudinal muscular coat. - c. Transverse muscular fibers. - d. Submucous or areolar layer. - e. Muscularis mucosae. - f. Mucous membrane, with vessels and part of a lymphoid nodule. - g. Stratified epithelial lining. - h. Mucous gland. - i. Gland duct. - m’. Striated muscular fibers cut across.