John F. Weiss

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The Spleen is a sort of large lymph node, about the size of a peach but bean shaped. Just like lymph nodes it is a sort of filter but with a much larger scope. For one, the spleen is the place in your body where 90% of your old blood cells are filtered and recycled when their life comes to an end. On top of that your spleen stores an emergency reserve of blood, about a cup, which is invaluable if something bad happens and you could use a bit of extra blood in your body. This is still not all, 25 to 30% of your red blood cells and 25% of your platelets (remember, the cell fragments that can ...more
Immune: A Journey Into the Mysterious System That Keeps You Alive
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