Now THIS Is a Synapse

Every time I read about the synapse, the all-important junction between two neurons, the cartoon above pops into my head. It shows the gist of how a synapse works: An electrical pulse enters the cell on the left and activates those little blue balls, called vesicles, to release their chemical contents, called neurotransmitters. The neurotransmitters spill out into the space between the cells, called the cleft, and activate those blue rectangles, called ion channels. The channels trigger the cell on the right to fire its own electrical pulse, or action potential, and this message travels on to the next cell. It's pretty neat. Our brains are full of ...

Latest Posts