脾在健康的人体内,有些什麽功用,这个问题,至今还是不十分明白;而且,它的构造如何,也还是一个尚在争论的问题。在网状内皮系统中,脾脏占了大部份,但它对生命,又并非一个不可缺少的东西。一般以为脾具有这些功用:(一)某些淋巴细胞和单核白血球的形成。有时,脾被认为是一个大的淋巴结,其间,静脉竇代替了淋巴窦。它包含了一种髓质(medulla),在其中可以看到淋巴细胞的球状群,包围着一个中央小动脉。(二)它的作用是红血球的贮藏所。当它收 The spleen in the healthy body, what function, this question, still not quite understand; and, its structure, is still a controversial issue. In the reticuloendothelial system, the spleen accounts for most, but it is not an indispensable thing to life. Generally thought that the spleen has these functions: (a) the formation of certain lymphocytes and mononuclear leukocytes. Sometimes, the spleen is considered a large lymph node, during which the sinus replaces the lymphoid sinus. It contains a medulla, in which a globular group of lymphocytes can be seen, enclosing a central arteriole. (B) its role is the storage of red blood cells. When it closes