Final answer:
The urogenital triangle is bordered by specific structures of the pelvis, including the inferior pubic ramus and the ischiopubic ramus, but not by larger muscles or the posterior border of the urogenital diaphragm.
Step-by-step explanation:
The borders of the urogenital triangle are framed by parts of the pelvis. Specifically, the inferior pubic ramus and ischiopubic ramus are key architectural structures that define this region. The inferior pubic ramus extends downward from the pubic symphysis and joins the ischial ramus, while the ischiopubic ramus extends from the pubic body to the ischial tuberosity. It's important to note that the borders are not marked by large muscles like the inferior borders of the gluteus maximus or the posterior border of the urogenital diaphragm, rather they are framed by more localized structures of the pelvis.