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位觉砂是维持身体平衡与空间定向的感受器。随着老年人口的不断增加,老年人的运动失调,越来越受到关注,因而研究老年人的平衡末梢器官就显得重要。该作者选择13名无内耳病变尸体颞骨,作光镜检查,包括6名儿童(2月～2岁半),7名老人(58～87岁),用环锯法取出颞骨,火棉胶包埋,片厚20μm,测量耳石区的厚度和宽度以计算椭圆囊、球囊斑的位觉砂的体积用以定量,结果发现老年组的椭圆囊、球囊斑位觉砂的体积明显比儿童组小,推测老年组的位觉砂体积变小是由于机械力损害或位觉砂因失去胶体膜的支持而逐
Sensory sand is to maintain body balance and spatial orientation of the receptors. As the elderly population continues to increase, the elderly’s dyskinesia is receiving more and more attention. Therefore, it is important to study the balance of the distal organs of the elderly. The author selected 13 patients without internal ear lesions of the temporal bone for light microscopy, including 6 children (2 months to 2 years and a half), 7 elderly (58 to 87 years), with a ring saw method to remove the temporal bone, Buried, piece thickness 20μm, the thickness and width of the otolith area were measured to calculate the volume of the ellipsoid capsule, the volume of the plaque sand of the balloon spot for quantification, found that the elderly group of oval capsule, Small group of children, speculated that the elderly group of sensory sand smaller volume is due to mechanical damage or sensory sand because of the loss of colloidal film support by