Fig. 1
From: Estimates of the permeability of extra-cellular pathways through the astrocyte endfoot sheath
Voronoi tessellation model of endfoot sheath. Top: a sample Voronoi tessellation with a mean endfoot area of \(A=25\,\upmu \hbox {m}^{2}\) and a vessel radius of \(r_{\textrm{o}} = 10\,\upmu \hbox {m}^{2}\) (including endfoot sheath). Cell center positions are generated from a uniform random distribution. The tessellation is periodic which is important to ensure that wrapping around a vessel will provide a consistent tiling of the vessel surface. Bottom: same tessellation as above, but mapped onto a cylinder surface (vessel surface)