26 APR 2012 by ideonexus
Number of Neuron Connection in the Brain
Each nerve cell receives connections from other nerve cells at six sites called synapses. But here is an astonishing fact—there are about one million billion connections in the cortical sheet. If you were to count them, one connection (or synapse) per second, you would finish counting some thirty-two million years after you began. Another way of getting a feeling for the numbers of connections in this extraordinary structure is to consider that a large match-head's worth of your brain conta...The different possible number of connections outnumbers the particles in the Universe (this is questionable).