Figure 6aFrom: Geometric conservation laws for cells or vesicles with membrane nanotubes or singular pointsSmooth and closed curved surface formed from three vesicles with three nanotubes interconnected by a 3-way nanotube junction. (B) Three curved surfaces A1, A2 and A3 with boundaries C1, C2 and C3, cut from the junction in Fig. 6a.Back to article page