Presynaptic cell Definition and Examples - Biology Online Dictionary (original) (raw)

presynaptic cell
(Science: physiology) In a chemical synapse, the cell that releases neurotransmitter that will stimulate the postsynaptic cell.
(Science: neurology) In an electrically synapsed system, the cell that has the first action potential, but since synapses are rectifying, one of the two cells involved is always presynaptic.

Last updated on July 24th, 2022