人体显微照片:当精子遇上卵子

发布: 2009-3-16 16:20 |  作者: webmaster |   来源: 本站原创 |  查看: 355次

15 Beautiful Microscopic Images from Inside the Human Body
十五幅精美的人体显微照片

下面将从头部开始,穿过胸腔,一直到达腹腔,经过这次自我发现之旅,让你切身体验到扫描电子显微镜的非凡影响力。在这个过程中,你将看到当细胞受到肿瘤侵扰时,会出现什么情况,以及卵子第一次与精子相遇时的情景。
Here you’ll experience the power of SEM in a journey of self-discovery that starts in your head, travels down through the chest and ends in the bowels of the abdomen. Along the way, you’ll see what’s normal, what happens when cells are twisted by cancer and what it looks like when an egg meets sperm for the first time. You’ll never see yourself the same way again.

1.红血球 Red blood cells

human-body-red-blood-cells.jpg
红血球 Red blood cells

They look like little cinnamon candies here, but they’re actually the most common type of blood cell in the human body - red blood cells (RBCs). These biconcave-shaped cells have the tall task of carrying oxygen to our entire body; in women there are about 4 to 5 million RBCs per microliter (cubic millimeter) of blood and about 5 to 6 million in men. People who live at higher altitudes have even more RBCs because of the low oxygen levels in their environment.

它们很像肉桂色糖果,但事实上它们是人体里最普通的血细胞——红血球。这些中间向内部凹陷的细胞的主要任务,是将氧气输送到我们的整个身体。在女性体内,每立方毫米血液中大约有400万到500万个红血球,男性每立方毫米血液中有大约500万到600个红血球。居住在海拔较高的地区的人,体内的红血球数量更多,因为他们生活的环境氧气相对更少。

 

 

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