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肺螺亚纲蜗牛Melampus的运动——II. 足神经节切除后的恢复

Locomotion in the pulmonate snail Melampus--II. Recovery after pedal ganglion excision.

作者信息

Snyder K A, Moffett S B

机构信息

Department of Zoology, Washington State University, Pullman 99164.

出版信息

Comp Biochem Physiol A Comp Physiol. 1990;96(3):407-14. doi: 10.1016/0300-9629(90)90104-z.

DOI:10.1016/0300-9629(90)90104-z
PMID:1976482
Abstract
  1. When one pedal ganglion is removed, snails first crawl using the unoperated side of the foot, but in 4-8 weeks the operated side exhibits an anterior-to-posterior gradient of recovery. 2. A ganglion bud bridges the site of the missing ganglion and axons project from intact central ganglia into the foot. 3. Rhythmic activity in right and left pedal nerve pairs is correlated during locomotion in the regenerated snails. 4. The oscillator in the remaining pedal ganglion drives bilaterally coordinated activity. Regenerated projections from the cerebral ganglia through the bud to the remaining pedal ganglion suffice to initiate locomotion.
摘要
  1. 当切除一个足神经节时,蜗牛最初会用足部未手术的一侧爬行,但在4至8周内,手术侧会呈现出从前向后的恢复梯度。2. 一个神经节芽连接缺失神经节的部位,轴突从完整的中枢神经节投射到足部。3. 在再生蜗牛的运动过程中,左右足神经对的节律性活动是相关的。4. 剩余足神经节中的振荡器驱动双侧协调活动。从脑神经节通过芽到剩余足神经节的再生投射足以启动运动。

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