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.
Key points. 1  Neurons communicate with one another at junctions called synapses. At a synapse, one neuron sends a message to a target neuronâanother cell. 2  Most synapses are chemical; these synapses communicate using chemical messengers. Other synapses are electrical; in these synapses, ions flow directly between cells.