 Best pictures from the world of medicine
[ 2009-10-21 14:04 ]
14 人体股骨的密质骨骼
如图所示，这是人体股骨的密质骨骼图像，其中显示出包含血管和结缔体素的微型管道网络。密质骨使人体骨骼坚硬有力，它是由多层有机物质和无机盐构成的。
存活的密质骨细胞在样本制备过程中已被摧毁，留下小孔。空气充斥在在这些小孔之中，由于视觉折射作用使用这些小孔呈现出黑色。图片是由艾弗－梅森(Ivor Mason)拍摄并提供的。
This image of compact bone from a human femur shows a network of tiny canals that contain blood vessels and connective tissue. Compact bone provides strength and rigidity in the body, and is composed of a layered matrix of organic substances and inorganic salts. Living bone cells are destroyed during specimen preparation, leaving tiny holes. Air is often trapped inside these holes, giving the cavities a dark appearance because of optical refraction. (Image: Ivor Mason) [NewScientist]
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