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Gluteal region

attachment/actions and innervations of gluteal muscles

QuestionAnswer
Gluteus Maximus: Proximal Attachment Posterior aspect of the ilium, posterior to the posterior gluteal fold
Gluteus Maximus: Distal Attachment Iliotibial tract and gluteal tuberosity
Gluteus Maximus: Action Extends thigh; rotates thigh laterally
Gluteus Maximus: Innervation Inferior Gluteal Nerve
Gluteus Medius: PA Posterior surface of ilium between the anterior and posterior gluteal lines
Gluteus Medius: DA Superior and lateral surface of greater trochanter
Gluteus Medius:Action Abducts thigh; rotates thigh medially
Gluteus Medius: Innervation Superior Gluteal Nerve
Gluteus Minimus: PA Posterior surface of ilium between anterior and inferior gluteal lines
Gluteus Minimus: DA Anterior surface of greater trochanter
Gluteus Minimus: Action Abducts thigh; rotates thigh medially
Gluteus Minimus: Innervation Superior Gluteal Nerve
Piriformis: PA Pelvis surface of the sacrum and sacrotuberous ligament
Piriformis: DA Medial and superior surface of greater trochanter by passing through the greater sciatic notch
Piriformis: Action Rotates thigh laterally; abducts flexed thigh
Piriformis: Innervation Branches from Sacral nerves 1 and 2 within the pelvis
Superior Gemellus: PA Ischial spine and sacrospinous ligament
Superior Gemellus: DA Tendon of obturator internus m.
Superior Gemellus: Action Rotates thigh laterally; abducts flexed thigh
Superior Gemellus: Innervation Nerve to Obturator Internus
Obturator Internus: PA Obturator membrane (overlying the obturator foramen); pelvic surface and adjacent bone (portions of pubis and ischium)
Obturator Internus: DA Trochanteric fossa after entering the pelvis through the lesser sciatic notch
Obturator Internus: Action Roates thigh laterally; abducts flexed thigh
Obturator Internus: Innervation Nerve to obturator internus
Inferior Gemellus: PA Ischial tuberosity
Inferior Gemellus: DA Tendon of obturator internus m.
Inferior Gemellus: Action Rotates thigh laterally; abducts flexed thigh
Inferior Gemellus: Innervation Nerve to quadratus femoris
Quadratus Femoris: PA Ischial tuberosity
Quadratus Femoris: DA Intertrochanteric crest and inferior to crest
Quadratus Femoris: Action Rotates thigh laterally
Quadratus Femoris: Innervation Nerve to quadratus femoris
Created by: renaewitta
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