Muscle rigidity

... They did the pioneer work of developing the method recording from muscle afferents such as muscle spindles. This project continued to develop ... muscle spindle function in normal and in patients with spasticity or rigidity. The method has also been used to explore a number of neural systems ...

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A cell wall means rigidity. A cell with a cell wall can still move, but it can't perform very "advanced" ... so to speak. The example of an amoeba was good. Just think what would happen if your muscle cells would have cell walls. You won't be able to do much running, now, would you? ...

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