When motor nerves supplying the muscles are affected, there's initially muscle weakness and an absence of reflexes.

当支配肌肉的运动神经受损，患者会感到肌无力以及反射消失。

In severe cases, nerve supplying the respiratory muscles like the diaphragm can be involved, and that can eventually lead to death.

在严重病例中，支配呼吸肌的神经如横隔膜受损，将最终导致死亡。

If the nerve supply to a muscle is cut, a gradual change takes place in the muscle fiber.

如果支配肌肉的神经纤维被切断，肌纤维就会逐渐发生变化。

Similarly, the ulnar nerve supplies the hypothenar muscles which control the little finger, the interossei muscles which abduct and adduct the fingers, meaning to spread or bring them together.

同样，尺神经支配小鱼际肌，控制小指运动，并支配骨间肌控制手指外展内收，即伸展或聚拢手指。

Acquired include 1. Neurogenic Basically, there is an innervation defect of the muscles, and because nerves supplying the muscles are not working, the muscles will be unable to work properly.

后天的包括1. 神经源性上睑下垂基本上是因为肌肉有神经支配缺陷，由于供应肌肉的神经不起作用，肌肉就不能正常工作。