I just read the article... Interesting!!! Check this part out:

"A hundred years ago, the spleen (located in the upper quadrant of the abdomen) was thought to be only reservoir for blood. It has only been in recent years that scientists discovered that the spleen is a manufacturing plant for immune cells, and a site where immune cells and nerves interact."  

I always wonder what they'll find out about the human body in the future. It's such a fascinating machine.

Happy thoughts to all! Catherine