Inferior vesical artery -all of the listed choices are branches of the internal iliac artery. the inferior vesical artery in the male supplies the seminal vesicle, prostate, fundus of the bladder, distal ureter, and the vas deferens. in the female, the vaginal artery supplies the vagina, urinary bladder, and pelvic portion of the urethra. the obturator artery gives off muscular and nutrient branches within the pelvis and then leaves the pelvis via the obturator canal to supply the thigh. the internal pudendal artery crosses the piriformis muscle, exits the pelvic cavity via the greater sciatic foramen, and enters the ischiorectal fossa via the lesser sciatic foramen. it supplies the external genitalia (penis and clitoris). the middle rectal artery supplies the inferior rectum and forms important anastomoses with other rectal arteries. the umbilical artery gives off the superior vesical artery in both sexes. its distal portion degenerates to form the medial umbilical ligament.
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