What do the internal iliac arteries primarily supply?

The internal iliac arteries are primarily responsible for supplying blood to the pelvic organs. These arteries branch off from the common iliac arteries and provide crucial blood flow to structures such as the bladder, rectum, reproductive organs, and parts of the pelvic wall. This supply is vital for the function of these organs, including processes related to reproduction and elimination.

While the lower extremities receive blood supply from the external iliac arteries, and abdominal organs are mainly supplied by the aorta and its branches, the internal iliac arteries specifically target the pelvic region. The upper extremities, on the other hand, are supplied by the subclavian arteries and their branches. Understanding the correct vascular supplies is essential in vascular ultrasound and identifying possible pathologies or complications in the corresponding regions.