AZ	Active zone
CB	Cacodylate buffer
EM	Electron microscopy
FIB-SEM	Focused ion beam scanning electron microscopy
L	Layer
MRI/PET	Magnetic resonance imaging/positron emission tomography
PB	Phosphate buffer
PO	Propylene oxide
RP	Recycling pool
RRP	Readily releasable pool
RT	Room temperature
SB	Synaptic bouton
SV	Synaptic vesicle
TEM	Transmission electron microscopy
TLN	Temporal lobe neocortex