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楔形核
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  cuneiformis nucleus
     CONNECTIONS OF CUNEIFORMIS NUCLEUS WITH LOWER PART OF BRAINSTEM AND SPINAL CORD IN RATS
     大鼠楔形核与下位脑干及脊髓之间的纤维联系─ARG法和HRP法研究
短句来源
     The connections 0f the cuneiformis nucleus (CnF) with the lower part of brainstem and the spinal cord were studied in rats by using anterograde autoradiographic method and retrograde horseradish peroxidase tracer method.
     用HRP法和ARG法研究了大鼠楔形核(CnF)与下位脑干及脊髓之间的传入和传出纤维联系。
短句来源
  cuneiform nucleus
     The efferent fibers of the middle and deep layers terminated to the ipsilateral central gray,the nucleus of Darkschewitsch,the interstitial nucleus of Cajal,the cuneiform nucleus and the contralateral superior colliculus.
     上丘中、深层的传出纤维终止于同侧中央灰质、Darkschewitsch 核、Cajal 中介核、楔形核以及对侧上丘;
短句来源
     1`he results revealed that the Con A-labelled cells were located in the ventrolateral divisions of red nucleus , the compact part of substantia nigra,the Edinger-Westphal nucleus, the cuneiform nucleus and the raphe nucleus centralis superior.
     结果表明,中脑内与刀豆素结合的细胞主要位于红核腹外侧区、黑质致密部、动眼神经副交感核、中脑楔形核和中缝中央上核等富含单胺类递质及P物质样免疫反应胞体的区域。
短句来源
  “楔形核”译为未确定词的双语例句
     Occasionally a few scattered abeled cells could be seen in the nucleus cuneiformis.
     在脑桥吻侧网状核,延髓旁正中网状核腹侧亚核、外侧旁巨细胞核及中脑楔形核内也有标记细胞。
短句来源
     2. After anterior lobe injection, the red nucleus, cuneate nucleus, cuniform nucleus and interstitial nucleus of cajal were labelled after 3 days, in addition to the labelling as shown in those cases with injections in the posterior lobe.
     2.前叶注射后3d,除有与后叶相似结果外,标记神经元还出现在红核、楔核、楔形核、外侧网状核、巨细胞网状核和Cajal中介核。
短句来源
  相似匹配句对
     Decommission of nuclear faclities
     设施退役
短句来源
     NUCLEON STRUCTURE
     子结构
短句来源
     Nucleation Boiling Characteristics of Liquid in Wedged Gaps
     楔形夹缝内部液体态沸腾特性
短句来源
     Micro-wedge Model for Pool Nucleate Boiling of Binary Mixtures under Micro-gravity
     微重力下双组分池内态沸腾的微楔形模型
短句来源
     (2) wedge-shaped diffuser;
     (2)楔形扩压器;
短句来源
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  cuneiform nucleus
Caudally, projecting fibres leave the main bundle to innervate the cuneiform nucleus, and parts of the pontomedullary reticular formation.
      
We therefore carried out two studies to investigate in rats the part of the ipsilateral projection that terminates in an area ventral to the inferior colliculus, referred to as the cuneiform nucleus.
      
Label in the cuneiform nucleus was heaviest after injections into the medial deep layers.
      
A similar distribution of labelled cells was seen after injections into the structures next to the cuneiform nucleus that also receive a tectal projection.
      
The projection from the superior colliculus to the cuneiform nucleus and immediately adjacent areas may therefore be also functionally distinct, mediating a particular kind of tectally-elicited response.
      
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The projection from the lower brain stem to the spinal cord was studied with HRP method by injecting HRP into the cervical and lumbar enlargements of the spinal cord of 10 cats.

用猫10只,分别干其颈膨大或腰膨大的一侧全灰质或一侧后角内注射HRP,研究下脑干到脊髓颈、腰膨大的投射。我们发现下列核群有细胞发出纤维投射到脊髓: 1.网状结构:巨细胞核、延髓中央核腹侧亚核、脑桥尾侧网状核和头侧网状核有较多脊髓投射细胞。延髓中央核背侧亚核、小细胞网状核、外侧旁巨细胞核、旁正中网状核腹侧亚核及中脑楔形核也向脊髓发出少量投射。除延髓中央核和小细胞网状核主要投至后角外, 其余核主要投射到后角以前灰质。 2.中缝核:大中缝核、苍白中缝核、隐中缝核向颈、腰膨大发出投射。背侧中缝核仅投射到颈膨大后角以前灰质。 3.薄束核及楔束核:向同侧颈、腰膨大发出部分重叠的定位投射。 4.脑神经核:E-W核、动眼神经主核、三叉神经脊束核、孤束核及前庭内侧核、外侧核、脊核和上核,前庭核ι细胞群均有细胞向脊髓发出投射。在前庭外侧核内,标记细胞有体部定位排列。 5.蓝斑、蓝斑下核、旁结合臂外侧核及内侧核、Kolliker-Fuse核、疑后核;投射至两侧脊髓。 6.红核:大量标记细胞出现在对侧红核内。红核的腹外侧部细胞投射至腰膨大,背内侧部投射到颈膨大。 7.上丘及中脑水管旁灰质投射到颈膨大后角以前的灰质。

The origin and termination of the reticulospinal tract were studied with HRP technique in ten cats by injecting HRP into the spinai dorsal horn or gray matter on one side of the cervical or lumbar enlargement, It was discovered that the reticulospinal neurons were located not only in the medial part of the medullopontal tegmentum, but also in its lateral part. There were also a few scattered labeled neurons in the reticular formation of midbrain. The reticulospinal tract ended in the spinal dorsal horn as well...

The origin and termination of the reticulospinal tract were studied with HRP technique in ten cats by injecting HRP into the spinai dorsal horn or gray matter on one side of the cervical or lumbar enlargement, It was discovered that the reticulospinal neurons were located not only in the medial part of the medullopontal tegmentum, but also in its lateral part. There were also a few scattered labeled neurons in the reticular formation of midbrain. The reticulospinal tract ended in the spinal dorsal horn as well as in the ventral horn. The reticulospinal tract mainly originated from the ventromedial part of the medulla and pons. In this region the labeled cells were most numerous in the nucleus gigantocellularis, less in the nucleus medulla oblongatae centralis subnucleus ventralis and the nucleus pontis centralis caudalis, and much less in the nucleus pontis centralis oralis, the nucleus paragigantocellularis laterlris and the paramedium reticularis subnucleus ventralis. Occasionally a few scattered abeled cells could be seen in the nucleus cuneiformis. The reticulospinal fibers from these nuclei projected bilaterally to both cervical and lumbar enlargments of the spinal cord except that the nucleus cuneiformis projected bilaterally to the cervical enlargement only.Two groups of labeled cells were found in the ventrolateral part of the medullary and pontal reticular formation, corresponding to the position of group A 1 and A 7 of noradrenergic neurons respectively.The reticulospinal tract derived from the medial part of the brain stem terminated predominately in the gray matter ventral to the spinal dorsal horn, but a few of them ended in the dorsal horn. These connections provide direct pathways for the control of motor and sensory functions of the spinal cord by medial reticular formation.It has been proved by Brodal with chromatolysis techenique that every cell in the nucleus paramedium reticularis sends its efferent fiber to the spinal area of cerebellum, but in this study labeled cells were found in e nucleus paramedium reticularis subnucleus ventralis. We suppose that the axons of these labeled neurons may be divided into two branches, one projecting to the cerebellum and the other to the spinal cord.It is noteworthy that we also found some labeled neurons in the nucleus medullae oblongatae centralis subnucleus dorsalis and nucleus parvocellularis, the so called "receptive region" of the reticular formation. The fibers originating from this region terminated in the spinal dorsal horn mainly, suggesting that this tract probably influences the sensory function of the spinal cord. It seems that the conception of the lateral reticular formation of the brain stem as a pure "receptive area" of the reticular formation may have be modified.

选猫10只,分别于颈膨大或腰膨大的一侧灰质或一侧后角内注射HRP,对网状脊髓束的起止进行了研究。发现网状脊髓束不仅起自延髓及脑桥内侧网状结构的大细胞部,还起于其外侧网状结构小细胞部,此外还有少量发自中脑网状结构。网状脊髓束不仅止于前角,还止于后角。网状脊髓束主要起自延髓及脑桥网状结构腹内侧区,其起源细胞在巨细胞网状核内为数最多,延髓中央核腹侧亚核次之,脑桥尾侧网状核更次之。在脑桥吻侧网状核,延髓旁正中网状核腹侧亚核、外侧旁巨细胞核及中脑楔形核内也有标记细胞。由以上核发出的纤维均投向脊髓两侧灰质。除楔形核只投向颈髓外,其余都投射到颈髓和腰髓。在延髓网状结构腹外侧及脑桥头端网状结构外侧各有一群标记细胞,其位置各与去甲肾上腺素能神经元A_1和A_7群相当。由脑干腹内侧网状结构发出的纤维大部分止于颈、腰膨大后角以前的灰质,但也有少量止于后角,这些联系为脑干网状结构内侧区提供了一条直接影响脊髓运动及感觉功能的通路。 Brodal用逆行细胞变性法证明旁正中网状核全部细胞投射到小脑“脊髓区”。我们在颈、腰膨大一侧灰质注射组的旁正中网状核腹侧亚核内也发现了一些标记细胞。可能这些细胞的轴突是分叉的,一支...

选猫10只,分别于颈膨大或腰膨大的一侧灰质或一侧后角内注射HRP,对网状脊髓束的起止进行了研究。发现网状脊髓束不仅起自延髓及脑桥内侧网状结构的大细胞部,还起于其外侧网状结构小细胞部,此外还有少量发自中脑网状结构。网状脊髓束不仅止于前角,还止于后角。网状脊髓束主要起自延髓及脑桥网状结构腹内侧区,其起源细胞在巨细胞网状核内为数最多,延髓中央核腹侧亚核次之,脑桥尾侧网状核更次之。在脑桥吻侧网状核,延髓旁正中网状核腹侧亚核、外侧旁巨细胞核及中脑楔形核内也有标记细胞。由以上核发出的纤维均投向脊髓两侧灰质。除楔形核只投向颈髓外,其余都投射到颈髓和腰髓。在延髓网状结构腹外侧及脑桥头端网状结构外侧各有一群标记细胞,其位置各与去甲肾上腺素能神经元A_1和A_7群相当。由脑干腹内侧网状结构发出的纤维大部分止于颈、腰膨大后角以前的灰质,但也有少量止于后角,这些联系为脑干网状结构内侧区提供了一条直接影响脊髓运动及感觉功能的通路。 Brodal用逆行细胞变性法证明旁正中网状核全部细胞投射到小脑“脊髓区”。我们在颈、腰膨大一侧灰质注射组的旁正中网状核腹侧亚核内也发现了一些标记细胞。可能这些细胞的轴突是分叉的,一支投射到小脑“脊髓区”,另一支投射到脊髓后角以前的灰质。这群细胞对脊髓与小脑的联系可能有特殊的作用。在一般认为是“接受区”的延桥网状结构背外侧区,相当于延髓中央核背侧亚核及小细胞网状核内,也发现了标记细胞,由此发出的纤维主要止于脊髓后角。推测此通路可能主要影响脊髓的感觉功能。因此,不应把脑干网状结构外侧区仅仅看成是网状结构的“接受区”。

In the present study the commissural projection between the two superior colliculi in the rat was examined with horseradish peroxidase method. The result shows that when HRP was injected into the superior colliculus of one side, HRP labeled cells could be found in every part of the contralateral superior colliculus. In each case the labeled cells were relatively concentrated in the region corresponding to the site of injection. It indicates that various parts of one superior colliculus may be connected chiefly...

In the present study the commissural projection between the two superior colliculi in the rat was examined with horseradish peroxidase method. The result shows that when HRP was injected into the superior colliculus of one side, HRP labeled cells could be found in every part of the contralateral superior colliculus. In each case the labeled cells were relatively concentrated in the region corresponding to the site of injection. It indicates that various parts of one superior colliculus may be connected chiefly with the corresponding part of the opposite side through the commissural projection.Most of the labeled cells were found in the middle layer of the superior colliculus, especially in its upper half, less in the deep layer, and the least in the superficial layer. Neurons in the superficial layer of one side project only to the superficial layer of the contralateral side, and so are the middle-deep layers. The connections between the superficial layers of both sides were independent from those of the middledeep layers.The commissural projection of the bilateral superior colliculi passes through the commissure of the superior colliculus which could be divided into a dorsal and a ventral fiberal fasciculns. The dorsal one was smaller, predominantly related to the superficial layer and the upper half of the middle layer; the ventral one was larger, part of its fibers related to the lower half of the middle layer and the deep layer, while the rest project to other nuclei of the contralateral region of the mesencephalon (e. g. nucleus cuneiforms, etc,).Most of the labeled cells were small in size, the rest were medium-sized, and no large ones were found.

本文用HRP法观察了大鼠两侧上丘之间的连合投射。结果表明向一侧上丘内注入HRP,在对侧上丘各个部位均发现有标记细胞,但以与注射中心区相对应的部位出现较多,这说明两侧上丘之间的连合投射存在着互相对应的关系。标记细胞主要位于上丘中层,特别是上丘中层的上1/2区域,其次在深层,浅层最少。而且一侧上丘的浅层只投射到对侧上丘的浅层,中、深层也如此,这表明上丘浅层和中、深层在连合投射中有明显的独立性。两上丘之间的连合投射经过上丘连合。上丘连合可分为背、腹两束纤维。背侧束细,主要与上丘中层上部及浅层有关。腹侧束粗,其中一部分与上丘中层下部和深层有关;另一部分为上丘至对侧中脑的其它核团(楔形核等)的纤维。标记细胞绝大多数是小细胞,少数是中细胞,未见到大细胞。

 
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