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猫颈段脊髓膈核精细结构的观察，特别涉及到其树突束。

Observations on the fine structure of the phrenic nucleus in the cervical spinal cord of the cat with special reference to its dendritic bundles.

作者信息

Takahashi K, Ninomiya T

出版信息

J Anat. 1985 May;140 ( Pt 3)(Pt 3):491-8.

PMID:4066485
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1165115/
Abstract

The structure of the cat phrenic nucleus in the cervical spinal cord was studied by light and electron microscopy. Neurons of this nucleus are medium sized and fusiform and are arranged longitudinally. The most unique feature of this nucleus is the extremely well organised longitudinal dendritic bundles. In the dendritic bundles there are dendrodendritic casual appositions without specialised structures and with desmosome-like contacts. Gap junctions, however, are not found at the site dendrodendritic contact. Neurons of the phrenic nucleus possess many axodendritic synapses whereas axosomatic synapses are infrequent. In most axon terminals there are round, clear, synaptic vesicles, but on rare occasions terminals containing either cored or flat vesicles are observed. The significance of these features of the nucleus, especially of the large dendritic bundles, is briefly discussed.

摘要

通过光学显微镜和电子显微镜对猫颈髓中膈神经核的结构进行了研究。该核的神经元中等大小，呈梭形，纵向排列。该核最独特的特征是组织极其良好的纵向树突束。在树突束中有树突-树突偶然并列，没有特殊结构，有类似桥粒的接触。然而，在树突-树突接触部位未发现缝隙连接。膈神经核的神经元有许多轴突-树突突触，而轴突-胞体突触很少见。大多数轴突终末有圆形、清亮的突触小泡，但偶尔也会观察到含有有芯或扁平小泡的终末。简要讨论了该核这些特征的意义，尤其是大的树突束的意义。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/425127c9956e/janat00195-0140-d.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/ad0961cf7638/janat00195-0140-c.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/425127c9956e/janat00195-0140-d.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/ca9a16cc15ed/janat00195-0136-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/c58d72cad836/janat00195-0137-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/98e8d202de54/janat00195-0137-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/a9901ca500ca/janat00195-0137-c.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/aad52c890a01/janat00195-0138-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/5fad655f22ec/janat00195-0138-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/e7c9e1f452e8/janat00195-0138-c.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/5fab326e79db/janat00195-0138-d.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/5bed5eac7fe0/janat00195-0138-e.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/988b5dcda87c/janat00195-0140-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/a29fc230f790/janat00195-0140-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/ad0961cf7638/janat00195-0140-c.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/696c/1165115/425127c9956e/janat00195-0140-d.jpg

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