Axon initial segments (blue) and the synapses that form along them (red and green) are shown. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to ...
Stylized axon arbor of a neuron. Yellow circle: root vertex at the axon initial segment; red circles: bifurcation vertices; black circles: terminal vertices at the axon's synaptic terminals.