When the signal reaches the axon terminals, the electrical charge changes once more: instead of sodium ions, it is the positively charged calcium ions that enter the extra-permeable cell membrane.

Inhibitory optogenetic tools prevent action potential generation during illumination. A study explores the possibility of squelching already propagating action potentials locally at axon terminals ...

Synaptic vesicle exocytosis is the biological process by which a synaptic vesicle fuses with the plasma membrane of the pre-synaptic axon terminal and releases its contents into the synaptic cleft ...

They lengthened its axon and tweaked the distribution of ion pumps for sodium, potassium, and calcium to match the known parameters of real motor neurons. Przedborski is interested in the contribution ...