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Superior gluteal artery: want to learn more about it?

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Superior gluteal artery

Superior gluteal artery (Arteria glutea superior)

The superior gluteal artery is an artery of the pelvis. It arises directly from the posterior trunk of the internal iliac artery as its largest branch. Along its course, it supplies muscles of the posterior pelvic region.

The superior gluteal artery gives off two terminal branches; superficial and deep. Via these branches, the artery supplies the gluteal muscles and the tensor fasciae latae, as well as some skin over the sacrum. Morever, it forms numerous arterial anastomoses with other arteries of the gluteal area.

Key facts about the superior gluteal artery
Origin Internal iliac artery
Branches Nutrient artery to ilium, superficial branch, deep branch
Supply Piriformis, obturator internus, ileum, gluteus maximus, gluteus medius, gluteus minimus, skin over sacrum, hip joint, tensor fasciae latae

This article will discuss the anatomy and function of the superior gluteal artery.

Course

In the majority of the population, the superior gluteal artery arises from the posterior trunk of the internal iliac artery and is essentially its continuation. The artery extends posteriorly between the lumbosacral trunk of the sacral plexus and the first sacral spinal nerve, or between the first and second sacral spinal nerves.

The artery then takes a more inferior trajectory to leave the pelvis via the greater sciatic foramen, superior to piriformis muscle. Here it splits into its superficial and deep terminal branches. The superficial branch travels between the superficial surface of the gluteus medius and the deep surface of gluteus maximus, while the deep branch travels along the deep surface of the gluteus medius.

Branches and supply

After arising from the posterior trunk and before exiting the pelvis via the greater sciatic foramen, the superior gluteal artery supplies the piriformis and obturator internus muscles and gives a nutrient branch to the ilium. After leaving the greater sciatic foramen, the artery splits into two terminal branches.

  • The superficial branch gives off several branches that contribute to the blood supply to the gluteus maximus muscle by forming several anastomoses with the branches of the inferior gluteal artery. Via these anastomoses, the branches of the superior gluteal artery provide about one-third of the blood supply to the gluteus maximus, although sometimes it can be its main supplying vessel. The superficial branch also gives off several twigs that pierce the tendinous, medial, part of the gluteus maximus muscle and anastomose with branches of the lateral sacral arteries and supply the skin over the sacrum.
  • The deep branch splits into two branches.
    • The superior branch travels along the pelvic attachment of the gluteus minimus to anastomose with the ascending branch of the lateral circumflex femoral artery and the deep circumflex iliac artery.
    • The inferior branch travels between the gluteus medius and minimus muscles and supplies them both, as well as the superior part of the tensor fasciae latae. Here it anastomoses with the lateral circumflex femoral artery. It extends a branch to the trochanteric fossa, where it anastomoses with the inferior gluteal artery and ascending branch of the medial circumflex femoral artery. Some branches supply the hip joint.

The superior gluteal artery sometimes also contributes to the vascular supply of the superior gemellus muscle.

Anatomical variation

Most commonly, the superior gluteal artery arises as a separate branch of the internal iliac artery. On rare occasions, it shares a common origin with other branches of the internal iliac artery; inferior gluteal, internal pudendal and umbilical arteries.

Sometimes, when the superior gluteal artery is a separate branch, it will give rise to the obturator artery, which is most commonly a branch of the internal iliac artery.

Superior gluteal artery: want to learn more about it?

Our engaging videos, interactive quizzes, in-depth articles and HD atlas are here to get you top results faster.

What do you prefer to learn with?

“I would honestly say that Kenhub cut my study time in half.” – Read more. Kim Bengochea Kim Bengochea, Regis University, Denver

Show references

References

  • Moore, K. L., Dalley, A. F., & Agur, A. M. R. (2014). Clinically Oriented Anatomy (7th ed.). Philadelphia, PA: Lippincott Williams & Wilkins.
  • Standring, S. (2016). Gray's Anatomy (41tst ed.). Edinburgh: Elsevier Churchill Livingstone.
  • Tubbs, R. S., Shoja, M. M., Loukas, M., & Bergman, R. A. (2016). Bergman’s comprehensive encyclopedia of human anatomic variation. Hoboken: Wiley Blackwell.

Illustrators

  • Superior gluteal artery (Arteria glutea superior) - Liene Znotina

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