中轴骨

AIM: To explore the effects of axial stress regulation on healing of lengthened callus.

目的：探讨轴向应力调节在延长段骨痂愈合中的作用。

［Objective］To explore the effects of axial stress regulation on healing of lengthened callus.

［目的］探讨轴向应力调节在延长区骨愈合中的作用。

The cardo is the first or proximal piece, and, in many insects, is the only portion directly attached to the head

轴节是第一个或最近体躯的骨片，在许多昆虫中是与头部直接相连的唯一部分。

During embryonic development, many animals form a number of temporary structures along their anterior-posterior axis-somites. Cells in somites differentiate into sclerotome, which gives rise to vertebral column, dermatome, which gives rise to dermis, and myotome, which gives rise to skeletal muscle.

脊椎动物在胚胎发育的过程中沿身体前后轴形成一定数目的暂时性结构－体节，随着胚胎的继续发育每个体节分化成为生骨区、生皮区和生肌区，继而生成各种组织。

As the distance between epiphysis and metaphysis is relatively close, it can prevent the contour from closing toward the edge of epiphyseal structure which has been divided in the first step, to set a perpendicular to the x-axis of region of interest in the segmentation process.

由于骨骺和干骺相离较近，在分割过程中设定一个垂直于兴趣区域x轴的直线，防止轮廓向着第一步中已经分割好的干骺骨结构边缘靠近。

To evaluate the bioactivity of the glass-ceramics,the specimens were soaked in the simulated body fluid. The results indicate that fluorapatite shows needle-like microstructure, which is similar to that in human bone and teeth. The formation of needle-like fluorapatite is related to the heat treatment procedure, which results in needle-like fluorapatite crystals by accelerating one-dimension growth along the c-axis through the screw dislocation growth mechanism. The mechanical properties of the glass-ceramics are close to those of the human bone and teeth. The bioactivity test results show that apatite layer is precipitated on the materials surface after 3 d immersion in SBF, which indicates the glass-ceramics have a good bioactivity.

研究结果表明：氟磷灰石相呈针状，与人体骨和牙齿的磷灰石形貌相似，有利于提高材料的生物活性和生物相容性；氟磷灰石的形成是材料被迅速加热至高温进行热处理，使磷灰石以螺旋位错生长机制沿c轴晶化长大所致；经热处理获得的材料具有优良的力学性能，基本满足骨科和齿科用生物材料的性能要求；材料在体外模拟体液中浸泡3 d后，样品表面已有磷灰石层生成，表明该材料具有较高的生物活性。

Results: Anterior talofibular ligament on axial plane, calcaneo fibular ligament on coronal and oblique axial planes, posterior talofibular ligament on all of four planes, cervical ligament on coronal and sagittal planes, interosseous talocalcaneal ligament on coronal, sagittal and oblique axial planes, lateral bundle of inferior extensor retinaculum on coronal and sagittal planes, medial and intermediate bundle on coronal planes, can be most clearly observed.

结果：距腓前韧带在轴位，跟腓韧带在冠状位和斜轴位，距腓后韧带在四个方位，颈韧带在冠状位和矢状位，距跟骨间韧带在冠状位、矢状位和斜轴位，伸肌下支持带浅束在冠状位和矢状位，中束和深束在冠状位，能清楚观察各韧带的形态和毗邻关系。

Noggin induces the nerve tube formation. It binds and inactivates members of the transforming growth factor-beta superfamily signaling proteins, such as bone morphogenetic protein-4 (BMP4). Proximal symphalangism (SYM1) and multiple synostoses syndrome (SYNS1) are related to noggin mutations.

Noggin能使紫外线人工腹侧化的爪蟾胚胎重新恢复背-腹的身体轴；在神经系统中诱导神经管的形成；减弱包括骨形态发生蛋白在内的转化生长因子信号蛋白的活性，从而控制骨的生长；调控生殖系统的发育。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。