refers to a synapse between two nerve cells in which the nerve impulse travels from axon to axon, rather than between an axon and a dendrite (axodendritic synapse) or an axon and a cell body (axosomatic synapse),
AXO-AXONAL SYNAPSE: “In an axo-axonal synapse, the nerve impulses travel between axons, as opposed to transmitting substances via the synaptic cleft.”