a: Spleen ~
b: elaborate wetland
What: "More recently, researchers determined that the spleen is like an elaborate wetlands, a Mississippi bayou for filtering and freshening the blood. In other organs, blood flows through an interconnected mesh of increasingly narrow arteries, veins and capillaries. The spleen, by contrast, has a so-called noncapillary circulatory system: as the blood flows in, it is dumped into puddle-like sinusoids, and to get back out it must squeeze between cells. That dumping and squeezing help filter out blood-borne parasites, aging blood cells too brittle for compression and the little oxidized pellets, the BB's, with which red blood cells are often pocked. "
Useful?
Writer: NATALIE ANGIER
LCC:
Where:
Date: Jun 7 2013 4:36 PM
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