英语语法分析

True cramps are caused by hyperexcitability of the nerves of a muscle.

真正的抽筋是由于肌肉神经的兴奋过度造成的。

The hyperexcitability of spinal dorsal horn neurons is one of the main reasons for persistent pain.

脊髓背角神经元超兴奋性被认为是病理性疼痛发生的重要原因。