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Mechanisms of locomotory speed change: The pteropod solution

机译:运动速度变化的机制:翼足类解决方案

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Three primary factors contributes to locomotory speed changes in the pteropod mollusk Clione limacina. (1) An increase in cycle frequency of locomotory appendages is associated with a baseline depolarization and enhancement of postinhibitory rebound in central pattern generator (CPG) interneurons, and a reorganization of the CPG through recruitment of additional interneurons. (2) An increase in the force of appendage movements is generated through enhancement of activity of active motoneurons, recruitment of additional motoneurons and peripheral modulation of swim musculature (3) Changes in biomechanical aspects of appendage movements are presumably achieved, at least in part, through changes in the activity of motoneurons and swim muscle. All changes associated with non-startle swim acceleration are produced by a serotonergic arousal system that acts at all three levels of the swimming system: CPG interneurons, motoneurons and swim musculature.
机译:三个主要因素有助于翼足类软体动物Clione limacina的运动速度变化。 (1)运动性附肢的周期频率增加与基线去极化和中央模式发生器(CPG)中神经元的抑制后反弹增强有关,并通过募集额外的中神经元使CPG重组。 (2)通过增强活动性运动神经元的活动,补充运动神经元的募集和游泳肌肉组织的外围调节,来增加附件运动的力量。(3)至少部分地实现了附件运动的生物力学方面的变化通过运动神经元和游泳肌的活动变化。与非惊吓性游泳加速有关的所有变化均由血清素能唤醒系统产生,该系统在游泳系统的所有三个级别上起作用:CPG中神经元,运动神经元和游泳肌肉组织。

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