Answer
There are many muscles that contribute to the support and stabilization of the organs of the pelvic cavity. In Mrs O'Brien's case however, the doctor probably intended for the nurse to work with the patient on strengthening the levator ani and the coccygeus muscles.
Work Step by Step
While it is most important in this case to work on strengthening the levator ani and the coccygeus muscles, there are other important pelvic floor muscle muscles that the nurse would know also need strengthening. Some of these are the superficial transverse perineal andthe the deep transverse perineal, It would also desirable in this case for the patient to try to achieve improved voluntary control of the external urethral sphincter--this muscle is concerned with control of urination although it does not have a support function..
It is important to remember that the levator ani muscle includes the iliococcygeus, the pubococcygeus and the puborectalis muscles
