正常脾的组织学外观，可见小淋巴细胞围绕在中央的脾小动脉周围，形成白髓。周围是红髓构成许多脾血窦。脾具有过滤作用，清除衰老的红细胞和红细胞内含物，脾也是血小板的贮存库。
This is the normal histologic appearance of the spleen. Note the small lymphocytes centered around the splenic arteriole at the center, forming the white pulp. Around this is the red pulp comprised of many splenic sinusoids. The spleen acts as a filter, removing old red blood cells and RBC inclusions. The spleen also acts as a storage area for platelets.
