人类听小骨超微结构冷冻割断扫描电镜法研究  

STUDY ON ULTRASTRUCTURE OF HUMAN AUDITORY OSSICLES BY FREEZE CRACKING SEM

作　　者：赵玉珍 杨恩英 李向印 王丽 雷建章 

出　　处：《河北医学院学报》1997年第1期12-14,共3页

摘　　要：应用ＤＭＳＯ冷冻割断扫描电镜法，对人类中耳正常锤骨进行了研究，结果发现：①锤骨表面的单层鼓室上皮布满微绒毛，无出胞入胞及细胞孔，更无腺体开口；②锤骨为简单的密质骨，不能分辨骨单位及间骨板；③锤骨中心具有骨髓腔和造血组织。作者就上述现象进行讨论，并提出鼓室听小骨缺少表面分泌免疫的推论。Ultrastructure of human normal hammer of middle ear was observed by DMSO freeze cracking SEM.The findings were:①the tympanic epithelium on hammer disposed with microvilli,but devoided of exocytosis,endocytosis,micropore,and glandular orifice;②the hammer composed of simple compact bone,without recognizable osteon(Haversian system) and interstitial lamella;③the marrow cavity and hematopoietic tissue were found in the center of hammer.The results suggested the auditory ossicles of tympanic cavity might lack surface secretory immunity.

关 键 词：听小骨 锤骨 超微结构 电镜 冷冻割断 

分 类 号：R329.4[医药卫生—人体解剖和组织胚胎学]