峡部

The portion of the follicle between the sebaceous duct and the insertion of the arrector pili muscle is the isthmus.

毛囊皮脂腺导管开口至立毛肌附着处为峡部。

Summary of Background Data. Pars defects are thought to be due to repeated mechanical stress on the spine in individuals with bipedal posture.

背景数据信息概要：峡部缺损认为是在双足站立姿势下脊柱上的反复机械应力所致。

At the root canal therapy process, hidden in the root canal isthmus, bifurcation area, triangle, shape and irregular dentinal tubules within the Enterococcus faecalis prepared by mechanical means it is difficult to remove, it can be biofilm, proton pump tolerance mechanisms such as root canals harsh ecological environment, to avoid conventional drugs, the role of disinfection, resulting in the failure of root canal therapy.

在根管治疗过程中，隐藏在根管峡部、分叉区、三角区、形态不规则区及牙本质小管内的粪肠球菌难以用机械预备的方法去除，它可通过生物膜、质子泵等机制耐受根管内苛刻的生态环境，躲避常规消毒药物的作用，从而导致根管治疗的失败。

With a press-fit at the isthmus and roentgenographic eidence of bone ingrowth, more stress shielding was eident.

股骨峡部紧压配合并且X线表现有骨长入者，表现出的应力遮挡更严重。

OBJECTIVE: To quantify the stress distribution on the intervertebral disc, interarticular process and iliolumbar ligament of the lumbar vertebrae.

目的：观察轴向载荷下L5~S1上关节突与下关节突之间的峡部、椎间盘和髂腰韧带的应变和表面应力情况。

RESULTS: Under the axial loading on the intact specimen, 70% stress contributed at the pars, 26% at intervertebral disc, and 2.8% at iliolumbar ligament.

结果：正常标本轴向压缩实验，70.7%的应力分布于峡部，分布在椎间盘应力为26.5%，而髂腰韧带则有2.8%应力分布。

The pars interarticular is and any remaining portion of the lamina are finally decorticated

峡部和任何留下的椎板部分也用骨凿或磨钻去皮质。

Variations of intertransverse process fusion included unilateral or bilateral bridging bone with or without medial fusion to the pars interarticularis.

对横突间植骨融合而言，主要包括对单侧或双侧植骨骨质的测试，可以同时伴有或不伴有峡部近内侧融合。

Results: The thickness of intertransverse ligament was about 0.60~1.39mm.

结果：横突间韧带厚度0.60~1.39mm；L(下标 3-5)节段动脉前支及伴行静脉90%以上位于相邻横突间韧带腹侧上1/2处，横突间韧带背侧中1/3处有一恒定节段动脉分支；腰神经前支与矢状面夹角18.90°~39.20°，下位横突的副突处距前方走行腰神经前支距离为5.63~8.05mm，椎弓峡部侧缘至腰神经前支的距离为1.73~3.64mm。

Objective:To evaluate the efficacy of self-designed memory alloy intrasegmental fixatorin treating lumbar spondylolysis.

目的 ：评价自行研制的腰椎峡部裂记忆合金节段内固定器的临床疗效。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。