 The year's best pictures from the world of medicine
[ 2009-10-21 11:41 ]
5 毛囊感觉神经末梢
这张显微图像显示的是毛囊的感觉神经末梢。感觉神经末梢(sensory nerve ending)是感觉神经元周围突的终末部分，该终末与其他结构共同组成感受器。感受器能接受内、外环境的各种刺激，并将刺激转化为神经冲动，传向中枢，产生感觉。图中的色彩是将该组织用硝酸银处理后呈现的，如同处理胶片一般。神经轴突是正在消褪的黑色部分。照片是由斯匹克－沃克尔(Spike Walker)提供的。
Image 5 of 20 This image shows sensory nerve endings at the end of a hair follicle. Sensory nerves respond to stimuli to communicate movement, pressure and pain. The colours in this image were created by treating the tissue with silver nitrate and then processing it like photographic film. The nerve axons are stained black. (Image: M. I. Walker) [NewScientist]
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