Tactile sensation in birds: Physiological insights from avian mechanoreceptors.

Tactile sensation in birds: Physiological insights from avian mechanoreceptors.
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DOI:
10.1016/j.conb.2022.102548
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发表时间:
2022-06
影响因子:
5.7
通讯作者:
--
中科院分区:
医学2区
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触觉在脊椎动物中是普遍存在的,并且依赖于低阈值机械感受器的触觉终末器官对皮肤中的机械力的检测。利用哺乳动物模型在理解触觉终末器官功能的机制方面取得了重大进展,但触觉触觉的具体机制仍然不清楚,触觉的主要检测器迈斯纳和帕西尼小体是瞬时触摸和振动的主要检测器。这些小体的鸟类同源物提供了一个机会,在这些结构的机械感觉功能研究,由于其相对的可访问性和高丰度的触觉觅食水禽的喙皮肤。在这里,我们回顾了目前的知识mechanosensory在鸟类的末端器官,并强调效用的鸟类模型,了解触摸检测的一般原则,在无毛皮肤的脊椎动物。
The sense of touch is ubiquitous in vertebrates, and relies upon the detection of mechanical forces in the skin by the tactile end-organs of low-threshold mechanoreceptors. Significant progress has been made in understanding the mechanism of tactile end-organ function using mammalian models, but the detailed mechanics of touch sensation in Meissner and Pacinian corpuscles, the principal detectors of transient touch and vibration, remain obscure. The avian homologues of these corpuscles present an opportunity for functional study of mechanosensation in these structures, due to their relative accessibility and high abundance in the bill skin of tactile foraging waterfowl. Here, we review the current knowledge of mechanosensory end-organs in birds, and highlight the utility of the avian model to understand general principles of touch detection in glabrous skin of vertebrates.
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