Term Name:	asymmetric synapse
Synonyms:	Gray's type I synapse
Definition:	A type of synapse occurring between an axon and a dendritic spine or dendritic shaft. Asymmetric synapses, the most abundant synapse type in the central nervous system, involve axons that contain predominantly spherical vesicles and contain a thickened postsynaptic density. Most or all synapses of this type are excitatory.
Ontology:	GO: Cellular Component [GO:0032279]    QuickGO    AmiGO