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The preliminary localization of lethal lesions in in-jured brain-stem indicated that,lesions in the neural structure concerning the respira-tory center and cardiovascular center might be the cause of death,which were prin-cipally on or close to the line linking the posterior angle of fourth ventricle at thedorsal surface and interpeduncular fossa at the ventral side.

脑干损伤致死性病变的初步定位提示，第四脑室下角与脚间窝之间的连线及附近的神经结构受损可能是机体死亡的原因。根据文献，此部位与机体的呼吸中枢和心血管中枢有关。

The ophthalmic artery gives off 3 branches to the intracanalicular optic nerve that all run first into the dura and then supply the nerve via the pia mater: medial collateral branch, lateral collateral branch, and ventral branch.

眼动脉行经视神经管时，分出一至三枝细小分枝，支配管内视神经，分别为：内侧循环支、外侧循环支、背侧支。

After HRP application to the rostral area (n=10), quite a number of labelled cells were distributed at the ventrolateral part of the nucleus of trapezoid body, the lateroventral periolivary nucleus and the retrotrapezoid nucleus. After HRP application to the caudal area (n=10), HRP labelled cells were mainly located at the lateral reticular nucleus and the ventral part of at the lateral paragigantocellular nucleus LPGi. After HRP application to the intermediate area (n=6), only 8HRP labelled cells were observed at the in 6rats. After HRP application to the control area (n=4), only 6HRP labelled cells were found at the rostral ventrolateral reticular nucleus.

大鼠延髓腹外侧表面的头端化学感受区表面敷贴辣根过氧化物酶后，在延髓斜方体核、外周橄榄腹外侧核和斜方体后核均有HRP标记细胞存在；于尾端化学感受区表面敷贴HRP后，在延髓的巨细胞旁外侧核、外侧网状核和舌下神经核有HRP标记细胞存在；于中间区表面敷贴HRP后，在6只大鼠的延髓内部区域仅观察到8个HRP标记细胞；于对照区敷贴HRP后，在4只大鼠的延髓内部区域仅观察到6个HRP标记细胞，散在地分布在头端腹外侧网状核。

According to the extent of malrotation, right PDH is associated with location of the superior mesenteric vein to the left of, and ventral to, the superior mesenteric artery and with absence of the normal horizontal duodenum.

根据旋转不良的程度不同，肠系膜上静脉位于肠系膜上动脉的左侧和前侧，以及没有正常十二指肠水平部。

METHODS: The ventral and dorsal medullar of rabbits were exposed and the bilateral vagotomy at the cervical level were cut. Discharge of the phrenic nerve was used as the respiratory index. Stainless pipe of 0. 8 mm or 0.4 mm diameter was used to make mechanical damage at the medial region in order to investigate the changes of respiration.

分别暴露家兔延髓腹面侧和背面侧，切断双侧迷走神经，记录一侧膈神经放电作为呼吸指标，应用直径为0.8 mm或0.4 mm的不锈钢管损毁面神经后核内侧区，观察机械损毁对呼吸的影响。

Rat ventral mesencephalic precursors can be induced to differentiate into plenty of tyrosine hydroxylase-positive DNs, mainly originating in A10 regions.

大鼠腹侧中脑多巴胺能前体细胞可在体外大量诱导分化成TH阳性的主要源自A10区的多巴胺能神经元。

Rat mesencephalic ventral brain tissue was isolated for culture of neural stem cells.

①分别于大鼠孕10，12，14，16，18天摸球法随机选取6只，麻醉后处死孕鼠，无菌条件下剖腹取胚胎，分离中脑腹侧脑组织进行神经干细胞培养。

MAIN OUTCOME MEASURES: Morphologic changes of differentiated ventral mesencephalic precursors; Expression of DN-related common marker genes before and after the induced differentiation.

主要观察指标：①多巴胺能前体细胞诱导分化后形态变化。②常见多巴胺能神经元标记基因在诱导分化前后过程中的表达。

BACKGROUND: A series of studies have demonstrated that ventral mesencephalic dopamine precursors may differentiate into considerable dopaminergic neurons available for cell transplantation for Parkinson's disease.

摘要背景：一系列研究表明，腹侧中脑多巴胺能前体细胞可在体外经人工诱导分化为大量多巴胺能神经元，有望用于移植治疗帕金森病，但是其分子特征尚不明了。

Rat ventral mesencephalic precursors can be induced to differentiate into plenty of tyrosine hydroxylase-positive DNs, mainly originating in A10 regions.

大鼠腹侧中脑多巴胺能前体细胞可在体外大量诱导分化成酪氨酸羟化酶阳性的主要源自中脑腹侧被盖区(A10)的多巴胺能神经元。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。