Final answer:
The external female genitalia are vascularized by the branches of the a. internal iliac artery, which supplies blood to the pelvic regions, including the urinary bladder, pelvis walls, external genitalia, uterus, and vagina.
Step-by-step explanation:
The external female genitalia is vascularized by the branches of the internal iliac artery. This artery is a branch from the common iliac arteries and it supplies blood to various pelvic regions, including the urinary bladder, walls of the pelvis, and external genitalia. In females, the internal iliac artery also provides blood to the uterus and vagina. The external iliac artery, on the other hand, supplies blood to the lower limbs and is not responsible for the vascularization of the external genitalia.
- The internal iliac artery supplies blood to the external female genitalia.
- It branches from the common iliac arteries.
- In females, it also provides blood to the uterus and vagina.