When viewed from a microscope, there is no striation presented in the muscle, and moreover, since it is no controlled by our willpower, it is called involuntary, nonstriated muscle.
从纤
观察，平滑肌无横纹状结构，平滑肌不随
的意志收缩，故称不随意肌
横纹肌。
When viewed from a microscope, there is no striation presented in the muscle, and moreover, since it is no controlled by our willpower, it is called involuntary, nonstriated muscle.
从纤观察，平滑肌无横纹状结构，平滑肌不随的意志收缩，故称不随意肌横纹肌。
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