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纤毛系统对水和黏液推进的适应性。

Adaptations of ciliary systems for the propulsion of water and mucus.

作者信息

Sleigh M A

机构信息

Department of Biology, University of Southampton, UK.

出版信息

Comp Biochem Physiol A Comp Physiol. 1989;94(2):359-64. doi: 10.1016/0300-9629(89)90559-8.

DOI:10.1016/0300-9629(89)90559-8
PMID:2573480
Abstract
  1. The characteristics of ciliary systems are determined by the dominance of viscous effects over inertial effects. 2. The velocity of water propulsion depends on ciliary length, beat frequency, pattern of beating, the arrangement of the cilia and their co-ordination. Beating cilia influence a layer of water only two or three cilium lengths deep, with maximal velocity near the ciliary tip. 3. Mucus is propelled by the tips of short cilia that penetrate the mucus; these cilia are closely spaced on epithelia, and achieve slow propulsion that is relatively independent of load and does not require strong ciliary co-ordination.
摘要
  1. 纤毛系统的特性由粘性效应相对于惯性效应的主导作用决定。2. 水推进的速度取决于纤毛长度、搏动频率、搏动模式、纤毛的排列及其协调性。摆动的纤毛仅影响深度为两到三个纤毛长度的一层水,在纤毛尖端附近速度最大。3. 黏液由穿透黏液的短纤毛尖端推动;这些纤毛在上皮细胞上紧密排列,实现缓慢推进,相对独立于负荷,且不需要强大的纤毛协调性。

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