This assembly of elements comprises a plate with housings for receiving the objects for bulking, each housing being delimited by lateral walls and comprising a support zone for receiving the object for bulking. According to the invention, each housing is formed by a cell; the lateral walls delimiting the cells adjoin one another from one cell to an adjacent cell and extend in a direction substantially perpendicular to the plane of the plate; each cell is shaped in order to at least partially receive in it the proximal part of an object for bulking; and each cell comprises at least one means for immobilizing each object for bulking.