平时生活中,经常会发生一些容易让人误会的生理现象,了解一下其中的奥秘,以防引起不必要的恐慌。骨响声在活动手脚时,关节有时会发出咯咯响声,这是关节之间的摩擦声,只要在发响声时没有疼痛感觉,即属正常现象。眼皮跳一遇到眼皮跳,人们就会想到“左眼跳财,右眼跳灾”。其实眼皮跳就是眼轮匝肌痉挛。平时眼轮匝肌受面神经支配,负责眼睑的闭合。当眼轮匝肌受到外界的刺激或支配这块肌肉的面神经兴奋的时候,就会引起眼轮匝肌的痉挛,出现眼皮有 In normal life, often happen some easy to misunderstand the physiological phenomenon, understand the mystery, in order to prevent unnecessary panic. Bone sounds When hands and feet move, the joints sometimes make a gurgling noise, which is a frictional sound between joints, as long as there is no painful feeling when it is heard, which is normal. Eyelid jump encounter eyelids jump, people will think “left eye jump money, right eye disaster ”. In fact, the eyelid jump is the orbicularis muscle spasm. Orbicularis oculi muscle is usually dominated by the facial nerve, responsible for the closure of the eyelid. When the orbicularis oris muscle stimulated by the outside world or the excitement of the facial nerve that controls the muscle, it will cause spasm of the orbicularis oculi muscle, there eyelids have