Densities and 3D distributions of synapses using FIB/SEM imaging in the mouse hippocampus (CA1)

Synapses have been identified, segmented and quantified in the adult mouse hippocampus with 3D electron microscopy (FIB-SEM). Three animals have been used (ID2, ID4 and ID28). Three layers of the CA1 area have been studied: stratum oriens, stratum radiatum and stratum lacunosum-moleculare. Data obtained include the number of asymmetric and symmetric synapses, their sizes and their spatial distribution.