这种皮肤功能与下面要讲的肩部皮肤的皱纹有关。

This skin function is related to the wrinkles of the shoulder skin.

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而从皮肤皱纹来看，这箭头所示的方向，就是肩部及上肢带的主要运动方向。

And from the skin wrinkles, the direction shown by the arrow, is the main direction of movement of the shoulder and upper limb.

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肩部周围的皮肤，以肩棱为界线，前面比后面薄，越到前面越柔软。

The skin around the shoulders, to the shoulder edge as the line, the front than the back thin, the more to the front of the softer.

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肩部周围的皮肤，以肩棱为界线，前面比后面薄，越到前面越柔软。

The skin around the shoulders, to the shoulder edge as the line, the front than the back thin, the more to the front of the softer.

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