Synaptogenesis (the creation of synapses) involves multiple steps. New dendrites are formed, thickening the dendritic branches of the neuron. New synapses are made when these dendritic branches make contact with other neurons’ axon terminals. Additionally, an existing synapse can be strengthened by the creation of new receptor sites on the post synaptic neuron (the dendrite). These new receptor sites increase sensitivity to the neurotransmitters released into the synaptic cleft.