鱼类的食道一般宽短而直,且管壁厚,由内层的黏膜层(mucous layer),中层的肌肉层(muscular layer)和外层的浆膜层(serous layer)等三层组织构成。
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Structural changes of muscular layer of aorta was observed.
观测主动脉血管壁中膜结构成分的改变。
The wall of ureter was composed of mucosa, muscular layer and adventitia.
输尿管管壁由黏膜、肌层和外膜组成;
The mucosal layer, the esophageal and gastric muscular layers were on three different levels after the anastomosis.
吻合后胃浆肌层、食管肌层、黏膜吻合线在三个不同平面。
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