A body portion fabricated of an essentially rigid material is formed of similarly configured first and second segments each shaped to include a generally spherical interior enlargement, a generally spherical exterior enlargement, an intermediate section between the enlargements, and a slit extending through the exterior enlargement and the intermediate section. The body portion pivots between a collapsed orientation with the slit at a reduced spacing and an expanded orientation with the slit at an enlarged spacing. An operational zone has a plurality of operational components. Application of a radial force to the second section by a users external anal sphincter muscle causes axial movement of the segments to both contract and retain expanded segments and expand and retain contracted segments to reorient the system between a collapsed orientation and an expanded orientation.
