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当我们乘车乘船时,常发现有人头晕、呕吐,平常叫晕车晕船,医学上叫运动病或晕动病。这不是由于人体的生理缺陷引起,而是人对车船不规则行进的一种暂时不适应的症状。待车船停止运行后,稍休息一会,就会好转。其原因主要和人的内耳前庭器官适应能力差有关。 人的内耳是由前庭、三个半规管和耳蜗三部分构成。前庭位于内耳中部;半规管分上、后、外三根,方向不同,三者互相垂直。前庭和半规管都是维持身体平衡的器官,但分工不同。内耳前庭器官负责感受人的头部位置和直行速度的变化,三个半规管则负责
When we travel by boat, we often find someone dizzy and vomiting, usually called motion sickness seasickness, medicine called motion sickness or motion sickness. This is not caused by the physiological defects of the human body, but a temporary unwell symptom of the irregular travel of motor vehicles. After the vehicle stops running, take a short break, it will be better. The reason is mainly due to poor adaptability of the human inner ear vestibular organ. The human inner ear is composed of vestibular, three semicircular canal and cochlear three parts. Vestibular is located in the middle of the inner ear; semicircular canal, upper and lower, three outside, different directions, the three perpendicular to each other. Vestibular and semicircular canal are organs that maintain body balance, but the division of labor is different. The vestibular organ in the inner ear is responsible for sensing changes in the person’s head position and straight-ahead speed, while the three semicircular canal is responsible