During the dissection of a 72-year old male cadaver,the hemiazygos vein(HAV)coursing the left side that drains into the persistent left superior vena cava was *** HAV was formed at the junction of the 9th to 11th righ...
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During the dissection of a 72-year old male cadaver,the hemiazygos vein(HAV)coursing the left side that drains into the persistent left superior vena cava was *** HAV was formed at the junction of the 9th to 11th right posterior intercostal veins,right subcostal vein,5th to 11th left posterior intercostal veins,and left subcostal vein;then ascended posteriorly to the thoracic *** collecting the accessory hemiazygos vein,it crossed over the aorta and the pedicle of the left lung via the hemiazygos arch,then converged with a communicative branch(vein of Marshall)that emerged from the left brachiocephalic vein to form the persistent left superior vena cava and entered the pericardium.
探讨13～18岁正常与腰椎间盘突出症关节突关节不对称对腰椎生物力学的影响。联合应用软件Mimics 21.0、3-Matic Medical 13.0、Geomagic Wrap、HYPERMESH和有限元软件ABAQUS建立下腰椎正常与青少年腰椎间盘突出症三维有限元模型,根据关...
详细信息
探讨13～18岁正常与腰椎间盘突出症关节突关节不对称对腰椎生物力学的影响。联合应用软件Mimics 21.0、3-Matic Medical 13.0、Geomagic Wrap、HYPERMESH和有限元软件ABAQUS建立下腰椎正常与青少年腰椎间盘突出症三维有限元模型,根据关节突关节左右之差,选择13～18岁正常青少年和青少年腰椎间盘突出患者资料各3例,共计6例,分析比较施加不同力矩载荷下(中立位、侧屈、旋转工况)椎间盘应力大小。
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