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Piriformis: Difference between revisions
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|insertion=Anterior part of medial aspect of greater trochanter of femur | |insertion=Anterior part of medial aspect of greater trochanter of femur | ||
|action=Externally rotates and stabilises the hip | |action=Externally rotates and stabilises the hip | ||
|synergists= | |synergists=External Obturator, Gemelli Muscles, Internal Obturator, Quadratus Femoris | ||
|spinal innervation=S1, S2 | |spinal innervation=S1, S2 | ||
|peripheral innervation=Nerve to piriformis | |peripheral innervation=Nerve to piriformis |
Revision as of 20:27, 8 April 2022
This article is a stub.
Piriformis | |
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Muscle Type | |
Origin | 2, 3, 4 costotransverse bars of anterior sacrum, few fibers from superior border of greater sciatic notch |
Insertion | Anterior part of medial aspect of greater trochanter of femur |
Action | Externally rotates and stabilises the hip |
Synergists | External Obturator, Gemelli Muscles, Internal Obturator, Quadratus Femoris |
Antagonists | |
Spinal innervation | S1, S2 |
Peripheral Innervation | Nerve to piriformis |
Vasculature | Inferior gluteal, lateral sacral and superior gluteal artery. |
Feature | Piriformis Syndrome |