• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Protein Spotlight >A tail of protection
【24h】

A tail of protection

机译：保护的尾巴

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Movement is essential to all organisms. Long before the advent of legs for instance, Nature had devised cilia to satisfy the essential need of mobility - both self-mobility and the capacity to create mobility. These tail-like protrusions, which appear on the surface of many eukaryotic cells and are known as motile cilia, are capable of propelling protozoans forward, for example, or of pushing an ovum along the fallopian tube towards the uterus. A second type of cilium also exists. These are the sensory cilia, such as those that belong to our taste buds for example, and which convey the sense of taste to our brain. However, since the beginning of this new century, scientists have discovered yet a third type of cilium. Indeed, there is growing evidence that some motile cilia can also be sensory. Or vice versa. By way of illustration, researchers have demonstrated that motile cilia located in the lungs can actually sense noxious substances, thanks to the existence of "taste" receptors on their surface, and then whip them away to clear the airways.
机译：运动对所有生物都是必不可少的。例如，在大腿出现之前很久，自然界就已经设计出纤毛来满足活动性的基本需求-自我活动性和创造活动性的能力。这些尾巴状的突起出现在许多真核细胞的表面，被称为运动性纤毛，能够向前推进原生动物，或沿着输卵管将卵子推向子宫。还存在第二种纤毛。这些是感觉纤毛，例如属于我们的味蕾的那些，并向我们的大脑传达味觉。但是，自本世纪初以来，科学家发现了第三种纤毛。确实，越来越多的证据表明某些运动性纤毛也可能是感觉性的。或相反亦然。通过说明，研究人员已经证明，由于肺表面的“味觉”受体的存在，位于肺部的运动性纤毛实际上可以感知有害物质，然后将其鞭打以清除呼吸道。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号