Fig. 2.

Schematic drawing of a neuron. Each neuron a single large axon. At the distal tip of the axon is a growth cone that serves to guide the axon to targeted brain regions. Once the axon reaches the target site, synapses, or points of connection, form between the axon and the target neuron. The synapse allows electrochemical signals to be transmitted to the target neuron. Each neuron also has a complex arbor of dendrites that receive information from other neurons. Image in the public domain uploaded from: http://upload.wikimedia.org/wikipedia/commons/7/72/Neuron-figure-notext.svg. Original image from Nicolas Rougier