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.
Synapse. Neurons do not quite touch. The synapse (or synaptic cleft) is the small gap (about 20nm) between the pre-synaptic terminal button and the post-synaptic neuron (and, more closely, the pre-synaptic membrane and the post-synaptic membrane).Neurotransmitters cross this gap and either excite or inhibit the post-sypnaptic neuron.ynapse. Neurons do not quite touch. The synapse (or synaptic cleft) is the small gap (about 20nm) between the pre-synaptic terminal button and the post-synaptic neuron (and, more closely, the pre-synaptic membrane and the post-synaptic membrane).