Definition

Noun: An artery that originates from the internal iliac artery and supplies blood to the muscles and bones of the pelvic region, specifically the iliac and lumbar areas.

Usage

The term "iliolumbar artery" is used in anatomical and medical contexts to describe a specific blood vessel. It is a precise anatomical term. - The surgeon carefully avoided the iliolumbar artery during the spinal procedure. - A blockage in the iliolumbar artery can cause pain in the lower back and pelvis.

Advanced Usage

• Clinical significance: The iliolumbar artery is an important landmark in pelvic and spinal surgery. Its branches are often involved in supplying the psoas major and quadratus lumborum muscles, as well as the ilium and lumbar vertebrae.
  • In cases of severe pelvic hemorrhage, embolization of the iliolumbar artery may be necessary.

Variants and Related Words

• Iliolumbar (adjective): Pertaining to the ilium and the lumbar region.
  • The iliolumbar ligament connects the pelvis to the spine.

Synonyms

• Arteria iliolumbalis: The Latin equivalent term used in formal anatomical nomenclature.

Noun

1. an artery that originates in the internal iliac artery and supplies the pelvic muscles and bones