Fig. 3
From: Excitability tuning of axons in the central nervous system
Recording from visualized hippocampal mossy fiber boutons with IR-DIC optics. Low-(left) and high-(right) magnification images of the CA3 region in mouse hippocampal slices. Recording pipette (asterisk) was placed on the large mossy fiber boutons (MFB) located in the stratum lucidum (Luc), inner margin of the stratum pyramidale (Pyr)