The axo-axo-dendritic synapse (A-A-D): The axon terminal A synapses with the axon terminal A to form the axo-axonie synapse (A-A);
The axo-axo-dendritic synapse (A-A-D): The axon terminal A synapses with the axon terminal A to form the axo-axonie synapse (A-A);
轴-轴-树突触(A-A_-D):轴突终末A与轴突终末A_形成轴-轴突触(A-A_);