Nerve to quadratus femoris

Nerve to quadratus femoris
Plan of sacral plexus and pudendal plexus.
Details
Fromsacral plexus (L4,L5,S1)
InnervatesQuadratus femoris muscle, Inferior gemellus muscle
Identifiers
LatinNervus musculi quadrati femoris
TA98A14.2.07.030
TA26551
FMA78705
Anatomical terms of neuroanatomy

The nerve to quadratus femoris is a nerve that provides innervation to the quadratus femoris muscle and gemellus inferior muscle.

Structure

The nerve to quadratus femoris is a sacral plexus nerve.[1][2] It arises from the ventral divisions of the fourth lumbar spinal nerve, fifth lumbar spinal nerve, and first sacral spinal nerve.[1] It leaves the pelvis through the greater sciatic foramen, below piriformis muscle.[2] It runs down in front of the sciatic nerve, the superior and inferior gemellus muscles, and the tendon of the obturator internus.[2] It enters the anterior surfaces of quadratus femoris muscle and gemellus inferior muscle. It gives an articular branch to the hip joint.[1][2]

Variation

Rarely, the nerve to quadratus femoris may also innervate the gemellus superior muscle, or the upper part of adductor magnus muscle.[2]

Function

The nerve to quadratus femoris provides motor innervation to quadratus femoris muscle and inferior gemellus muscle.[1][2] It also provides sensory innervation to the hip joint.[1][2]

References

Public domain This article incorporates text in the public domain from page 957 of the 20th edition of Gray's Anatomy (1918)

  1. 1 2 3 4 5 Mehta, Karishma; Tubbs, Shane (2021). "Chapter 8 - The Nerve to Quadratus Femoris". Surgical Anatomy of the Sacral Plexus and Its Branches. Elsevier. pp. 35–39. doi:10.1016/B978-0-323-77602-8.00008-8. ISBN 978-0-323-77602-8.
  2. 1 2 3 4 5 6 7 Apaydin, Nihal (2015). "Chapter 47 - Variations of the Lumbar and Sacral Plexuses and Their Branches". Nerves and Nerve Injuries. Vol. 1: History, Embryology, Anatomy, Imaging, and Diagnostics. Academic Press. pp. 627–645. doi:10.1016/B978-0-12-410390-0.00049-4. ISBN 978-0-12-410390-0.


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