symmetric synapse cellular_component The term 'symmetric' in this name refers only to gross morphology. There is no implication of functional symmetry. A synapse that lacks an electron dense postsynaptic specialization. In vertebtrates, these occur primarily on dendrite shafts and neuronal cell bodies and involve persynapses containing clusters of predominantly flattened or elongated vesicles and are typically inhibitory. GO:0032280 Gray's type II synapse neuron to neuron synapse