Final answer:
The branches of the anterior trunk of the internal iliac artery are the umbilical artery and the superior vesical arteries, responsible for providing blood supply to pelvic structures and, in females, to the uterus and vagina.
Step-by-step explanation:
The branches of the anterior trunk of the internal iliac artery include the umbilical artery and the superior vesical arteries. The internal iliac artery is a branch from the common iliac arteries and plays a crucial role in supplying blood to various pelvic structures. In females, the internal iliac artery also provides blood to the uterus and vagina. This artery should not be confused with the much larger external iliac artery, which supplies blood to each of the lower limbs.