<prompt> Blood supply to middle third of vagina isMiddle rectal aeryInferior vesicle aeryInternal pudendal aeryCentral vaginal aery  <response>: Blood is supplied to the vagina by the uterine and vaginal aeries, both branches of the internal iliac aery. Venous return is achieved by the vaginal venous plexus, which drains into the internal iliac veins, the uterine vein. Lymphatic drainage is the iliac and superficial inguinal lymph nodes. 