Connections between muscle and nerve cells are established embryonically when newborn neurons extend axons to "wire" the appropriate muscle fiber.

肌肉和神经元的连接建立在胚胎阶段，此时新生的神经元伸展突触“链接”到相应的肌纤维。

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Connections between muscle and nerve cells are established embryonically when newborn neurons extend axons to "wire" the appropriate muscle fiber.

肌肉和神经元的连接建立在胚胎阶段，此时新生的神经元伸展突触“链接”到相应的肌纤维。

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