Contemporary Examples. 1  Cars have national attributes and GM wants their luxury line to grab the glitz of New York instead of the grime of Detroit. 2  Restorers completed a 12-year project in 1998 that cleaned decades of grime from the ceiling. 3  That grime came from the cigarette smoke of millions of commuters.
But one cell doesnât actually touch another, and the signals canât jump across the tiny spaces in between. To cross those tiny gaps, called synapses, they rely on chemical messengers. These chemicals are known as neurotransmitters. And their role in cell talk is called neurotransmission. When an electrical signal reaches the end of a neuron, it triggers the release of tiny sacs that had been inside the cells.
Figure 2:1 The neuron,or nerve cell, is the functional unit of the nervous system. The neurons has proceses called dendrites that receive signals and an axon that transmits signals to another neuron.The cell body, also called the soma, is the metabolic center of the neuron.. Communication between neurons is the foundation for brain function. Understanding how neurotransmission occurs is crucial to understanding how the brain processes and integrates information. Interruption of neural communication causes changes in cognitive processes and behavior.