PREGANGLIONIC AUTONOMIC NUCLEUS IN DORSAL GRAY COMMISSURE OF LUMBAR SPINAL-CORD OF RAT
PREGANGLIONIC AUTONOMIC NUCLEUS IN DORSAL GRAY COMMISSURE OF LUMBAR SPINAL-CORD OF RAT
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DOI：
10.1002/cne.901830106
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发表时间：
1979-01-01
影响因子：
2.5
通讯作者：
PEVETO, CA
中科院分区：
文献类型：
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作者：
HANCOCK, MB;PEVETO, CA
用辣根过氧化物酶（HRP）逆行追踪法，观察了传入腹下神经的节前神经元在大鼠脊髓内的分布。标记细胞存在于脊髓节段L[腰椎]1-L2的中间灰质中。大多数（81%）HRP填充细胞形成一个连续的柱沿着中线在背侧灰质连合。这个细胞柱被称为背连合核（DCN）。其余的HRP标记细胞存在于中间灰质的中间和外侧区域的两侧;后者的大多数细胞位于沿着中间灰质的外侧边缘。目前发现的中线节前自主神经细胞柱在哺乳动物的脊髓是相反的，在以前的报告中，交感神经节前神经元主要位于外侧中间灰质。DCN可能具有种属特异性，并与骨盆中存在的短肾上腺素能神经元系统有关。
The distribution in the spinal cord of the rat of preganglionic neurons sending fibers into the hypogastric nerve was determined with the retrograde transport of horseradish peroxidase (HRP). Labeled cells were present in the intermediate gray matter of spinal segments L[lumbar]1-L2. The majority (81%) of HRP-filled cells formed a continuous column along the midline in the dorsal gray commissure. This cell column was termed the dorsal commissural nucleus (DCN). The remainder of HRP-labeled cells were present bilaterally in the middle and lateral regions of the intermediate gray; the majority of the latter cells were located along the lateral border of the intermediate gray. The present finding of a midline preganglionic autonomic cell column in the spinal cord of a mammal is contrary to previous reports, in which sympathetic preganglionic neurons were localized primarily in the lateral intermediate gray. The DCN may be species-specific and related to the system of short adrenergic neurons present in the pelvis.