1 Roadmap for Quality Measurement in the Traditional Medicare Fee-for-Service Program [PDF, 3MB]. 2  Roadmap for Implementing Value Driven Healthcare in the Traditional Medicare Fee-for-Service Program [PDF, 3MB]. 3  Medicare Resource Use Measurement Plan [PDF, 3MB].
When a nerve signal, or impulse, reaches the ends of its axon, it has traveled as an action potential, or a pulse of electricity. However, there is no cellular continuity between one neuron and the next; there is a gap called synapse.
When a neuron releases molecules of a chemical neurotransmitter, it passes from what is called the âpresynaptic nerve terminalâ or the end of the neuron, through the âsynapseâ or the gap between neurons, and is finally taken up by a âreceptorâ area on the receiving neuron.