Twelve human stapes from temporal bones fixed by formalin were extracted. Different dimensions were measured by an electronic microscope with an accuracy of microm. These dimensions were as follows: (1) maximum diameter of stapes head parallel to the axis of footplate, 1088 microm (range, 857-1277 microm); (2) distance of main nutritional foramen to head surface, 398 microm (range, 250-833 microm); (3) stapes head to shoulders, 757 microm (range, 571-1000 microm), head to foramen, 1047 microm (range, 785-1500 microm), and head to lateral surface of footplate, 2612 microm (range, 1892-3400 microm); (4) anterior crus width at shoulder, 398 microm (range, 333-500 microm); minimum width of anterior crus, 251 microm (range, 214-350 microm); (5) posterior crus width at shoulders, 386 microm (range, 285-600 microm); minimum width of posterior crus, 191 microm (range, 142-300 microm); (6) maximum width of footplate near anterior crus, 371 microm (range, 321-500 microm), maximum width of footplate near the posterior crus, 411 microm (range, 357-611 microm), minimum width of footplate, 228 microm (range, 178-388 microm); (7) maximum width of ossicle, 2298 microm (range, 1928-3050 microm); (8) angle between crura, 19.5 degrees (range, 15-24 degrees ); and (9) diameter of foramen at the end of curve, 1343 microm (range, 1071-1888 microm).

译文

从福尔马林固定的颞骨中提取了十二个人类stapes。通过电子显微镜以microm的精度测量了不同的尺寸。这些尺寸如下 :( 1) 与踏板轴线平行的the头的最大直径,1088微米 (范围,857-1277微米); (2) 主要营养孔到头表面的距离,398微米 (范围,250-833微米); (3) of头到肩,757微米 (范围,571-1000微米),头到孔,1047微米 (范围,785-1500微米),头到脚踏板的侧面,2612微米 (范围,1892-3400微米); (4) 肩前双脚宽度,398微微m (范围,333-500微微m); 前双脚最小宽度,251微微m (范围,214-350微微m); (5) 肩后双脚宽度,386微微m (范围,285-600微微m); 后双脚的最小宽度,191微米 (范围,142-300微米); (6) 前双脚附近的最大踏板宽度,371微米 (范围,321-500微米),后双脚附近的最大踏板宽度,411微米 (范围,357-611微米),脚踏板的最小宽度,228微米 (范围,178-388微米); (7) 小骨的最大宽度,2298微米 (范围,1928-3050微米); (8) crura之间的角度,19.5度 (范围,15-24度); (9) 曲线末端孔的直径,1343微米 (范围,1071-1888微米)。

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