Fig. 2: Size comparison between vesicles and the tetrahedral meshes used in this study.

Each separate panel shows the binned average edge length of all tetrahedrons for a mesh, along with, below, an example size comparison between a vesicle or vesicles of diameter 40 nm and the tetrahedrons that they overlap in the mesh. a A mesh of a spherical volume of 0.5 μm diameter comprised of just 291 tetrahedrons, which were the largest tetrahedrons that it was possible to generate for this mesh shape. b A mesh of the same spherical volume of 0.5 μm diameter comprised of 265,307 tetrahedrons, which are the smallest tetrahedrons used in this study. c The mesh from the realistic synaptic bouton model of Gallimore et al.³⁵, also used in this study.