http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. The primary cilium, the solitary, antenna-like structure that studs the outer surfaces of virtually all human cells, orient cells to move in the right direction and at the speed needed to heal wounds, much like a Global Positioning System helps ships navigate to their destinations. http://www.physorg.com/news148742058.html Biology Wed, 17 Dec 2008 13:14:18 EST news148742058 (PhysOrg.com) -- Yale University scientists today reported evidence suggesting that the tiny cilia found on brain cells of mammals, thought to be vestiges of a primeval past, actually play a critical role in relaying molecular signals that spur creation of neurons in an area of the brain involved in mood, learning and memory. The findings are published online in the journal Proceedings of the National Academy of Science. http://www.physorg.com/news137776131.html Biology Tue, 12 Aug 2008 16:08:51 EST news137776131