蛙蝌蚪外侧运动柱神经元对四条功能性后肢的定量补偿。
Quantitative compensation by lateral motor column neurons in response to four functional hindlimbs in a frog tadpole.
作者信息
Maheras H M, Pollack E D
出版信息
Brain Res. 1985 Mar;351(1):150-4. doi: 10.1016/0165-3806(85)90242-1.
PMID:3873271
Abstract
An analysis of the lateral motor columns of a frog tadpole with 4 functional unilateral hindlimbs revealed a 58% increase in the number of neurons on the overloaded side as compared to the control side of the spinal cord. An accompanying, apparently selective, increase in the number of very large neurons suggests that spinal motor centers respond to peripheral overload through a variable combination of neuronal number and size in providing for adequate innervation.
摘要
对一只具有4条功能性单侧后肢的蛙蝌蚪的外侧运动柱进行分析发现，与脊髓的对照侧相比，负荷过重一侧的神经元数量增加了58%。伴随而来的是，非常大的神经元数量明显选择性增加，这表明脊髓运动中枢通过神经元数量和大小的可变组合来应对外周负荷过重，以提供足够的神经支配。
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