根頸直徑 的英文怎麼說
中文拼音 [gēnjǐngzhíjìng]
根頸直徑
英文
collard diameter-
Methods ： fifty paired embalmed cadaveric humeri ( twenty - five pairs : fourteen from male donors and eleven from female donors ) were scanned in medial - lateral ( ml ) and anterior - posterior ( ap ) position according to the humeral retroversion by ct. images of the humeri in the transverse planes at the lowest border of neck ( lbn ), 20mm and 40mm distal of lbn ( lbn - 20 、 lbn - 40 ), isthmus, head - neck anterior - posterior ( hn - ap ) were obtained. sixty - one extracortical and intracortical parameters were measured exactly by image analytic computer software that included offset, head position, head - shaft angle, head to tuberosity height ( ht ), head thickness, curvature radius, articular surface arc ( sa ), neck diameter, isthmus position, proximal and distal border of isthmus, maximum coronal and sagittal diameter of medullary canal and thickness of cortical bone in four planes, including lbn, lbn - 20, lbn - 40 and isthmus
方法： 50根成對防腐肱骨（男14對，女11對）按肱骨頭扭轉角置於冠狀位和矢狀位，行肱骨全長，頭頸矢狀面，解剖頸下緣及其下20mm 、 40mm ，髓腔狹窄部四平面ct掃描，由ct軟體測量冠、矢狀位髓腔內外參數共61項，包括頭心?干軸距，頭位置，頭干角，頭?結節高度差，頭厚度，頭半徑，關節面張角，解剖頸直徑，髓腔狹窄部位置，解剖頸下緣及其下20mm 、 40mm和狹窄部四個平面髓腔的最大冠、矢狀徑，皮質骨厚度等。Measurements for the following anatomical structures were obtained with the aid of a microscope, the distance between mastoid process and transverse process of the atlas, occipital condyle, and superior lateral loop ; the distances between the midline and the v3 at three levels : 1 ) the distal ( dural ) ring ; 2 ) the intersection with the anterior ramus of the c - 2 ; and 3 ) the upper level of the transverse foramen of the atlas ; the diameter of v3h at the origin of the muscular artery and at the sites of penetrating the dural ring ; the width of the v3 at the intersection with the anterior ramus of the c - 2 and at the sites of penetrating the transverse foramen of the atlas
V _ 3h和v _ 3v各有兩個分支： v _ 3h分出肌動脈支和腦膜后動脈支； v _ 3v分出肌動脈支和根肌動脈支，第一、二脊神經發出的前後支分別與它們又毗鄰關系。通過手術顯微鏡測量下述解剖結構：乳突尖與環椎橫突尖、枕髁外側緣、 v _ 3上外側袢的距離；椎動脈v _ 3段在穿硬膜環、與第二頸神經前支交叉、環椎橫突孔上緣三處與中線的距離； v _ 3h在發出肌支處和穿硬膜天渾醫科大學碩士研究主學位論文環處的直徑； v3v在與第二頸神經前支交叉處和穿環椎橫突孔處的直徑。
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