Monsell E M
Brain Res. 1980 Feb 17;184(1):1-9. doi: 10.1016/0006-8993(80)90583-1.
The connectivity of the stellate ganglion of Octopus was investigated using cobalt and horseradish peroxidase (HRP) tracers applied to severed preganglionic and postganglionic nerves. Centripetal cells, defined as cells in the ganglion which send their axons back toward the brain, were discovered by both methods. Application of HRP to the pallial (preganglionic) nerve labeled the preganglionic fibers which enter the ganglion and spread widely within the neuropil. Application of either tracer to a single stellar (postganglionic) nerve labeled motor neuron cell bodies spread over 1/4 to 1/3 of the ganglion. Since there are 25-40 such stellar nerves per ganglion, it may be inferred that there is only a limited topographic relationship between the location of motor neuron cell bodies in the stellate ganglion and the segment of mantle muscle which they innervate. The axon and many side branches of these motor neurons were also labeled. The smooth, diffuse form of HRP labeling produced in pre- and portganglionic axotomized neurons in Oct0pus is similar in appearance to that produced in damaged mammalian neurons.
利用钴和辣根过氧化物酶（HRP）示踪剂，分别注射到离断的节前和节后神经，对章鱼星状神经节的连接性进行了研究。两种方法均发现了向心细胞，即神经节中轴突向脑发出的细胞。将HRP注射到外套膜（节前）神经，标记了进入神经节并在神经纤维网中广泛分布的节前纤维。将任何一种示踪剂注射到一条单独的星状（节后）神经，标记的运动神经元细胞体分布在神经节的1/4到1/3区域。由于每个神经节有25 - 40条这样的星状神经，可以推断，星状神经节中运动神经元细胞体的位置与它们所支配的外套膜肌肉节段之间只有有限的拓扑关系。这些运动神经元的轴突和许多侧支也被标记。章鱼节前和节后轴突切断神经元中产生的HRP标记呈平滑、弥散状，其外观与受损哺乳动物神经元中产生的相似。
