in subsequent bowel emptying steps or sequences the cycle may also be modified and the order of emptying along the length of the prosthetic bowel may be done is subsections according to a program such as for example as illustrated in fig1 referring to fig1 a sequence of emptying of one embodiment is illustrated according to the embodiment a prosthetic bowel 330 is illustrated as being divided into five sections sections a e with section a being the aborad most section coupled to the anus and section e being coupled to the small intestine each section includes a series of inflatable members such as for example the inflatable members of the prosthesis described with respect to fig2 11 as illustrated in fig1 the sections of inflatable members are actuated in a sequence of sections in the first sequence i section a is actuated so that the inflatable members are inflated in a sequence in an aborad direction excreting the material in section a after a is actuated a second sequence ii of inflatable member sections is actuated in which section b is actuated so that the inflatable members of section b are inflated in a sequence in an aborad direction and then section a is.