胃壁肌层的肌纤维方向为A.内层为环形肌，中层为纵行肌，外层为斜形肌 B.内层为

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问题胃壁肌层的肌纤维方向为A.内层为环形肌，中层为纵行肌，外层为斜形肌B.内层为纵行肌，中层为环形肌，外层为斜行肌C.内层为斜行肌，中层为环行肌，外层为纵形肌D.内层为斜行肌，中层为纵行肌，外层为环形肌E.内层为纵行肌，中层为斜行肌，外层为环形肌

选项 A.内层为环形肌，中层为纵行肌，外层为斜形肌
B.内层为纵行肌，中层为环形肌，外层为斜行肌
C.内层为斜行肌，中层为环行肌，外层为纵形肌
D.内层为斜行肌，中层为纵行肌，外层为环形肌
E.内层为纵行肌，中层为斜行肌，外层为环形肌

答案 C

解析

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