Adjective
presynaptic (not comparable)
(cytology) In a synapse, of or pertaining to the neuron that releases neurotransmitter into the synaptic cleft.
After release dopamine can either be taken up again by the presynaptic terminal, or broken down by enzymes. Source: Internet
Acetylcholine is released from presynaptic neurons into the synaptic cleft. Source: Internet
Amphetamine can enter the presynaptic neuron either through DAT or by diffusing across the neuronal membrane directly. Source: Internet
Afterward, inside the presynaptic terminal, a new set of vesicles are moved into position next to the membrane, ready to be released when the next action potential arrives. Source: Internet
Chemical synapses pass information directionally from a presynaptic cell to a postsynaptic cell and are therefore asymmetric in structure and function. Source: Internet
Drugs that block the presynaptic serotonin transporter are used for treatment, such as Prozac and Zoloft. Source: Internet