A 62-yeаr-оld wоmаn is аdmitted tо the pre-op holding area to begin her prep for today’s surgery. HPI (history of presenting illness) includes: G2P2, post-menopausal, and urinary stress incontinence. On ultrasound a cystocele and possible rectocele are noted. Plan is to perform a cystopexy, colpoplasty, and rectoplasty. What structure will not be involved in this surgery?