Lateral Sacral Arteries: Key Blood Suppliers to the Sacrum
The lateral sacral arteries, branching from the internal iliac artery, play a crucial role in supplying blood to the sacral region. These arteries, namely the superior and inferior lateral sacral arteries, are vital for the functioning of the sacrum and surrounding structures.
The inferior lateral sacral artery, one of the two lateral sacral arteries on each side, runs horizontally in front of the piriformis and sacral nerves before descending in front of the sacrum. It supplies blood to the sacral nerve rootlets, adjacent muscles, meninges, and sacrum. The superior lateral sacral artery, also a branch of the posterior division of the internal iliac artery, connects with branches of the middle sacral arteries, supplying blood to the membranes and skin over the sacrum.
The lateral sacral arteries, specifically the inferior and superior lateral sacral arteries, are essential for the proper functioning and health of the sacrum and surrounding structures. Their role in supplying blood to the region cannot be overstated.
