Muscles: Gluteal Region
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Gluteus Maximus | O: Posterolateral aspect of the ilium, posterior aspects of sacrum and coccyx, and sacrotuberous ligament
I: Pass inferiorly and laterally to IT band and the gluteal tuberosity
A: Femur-Ext. & ER and Knee-Ext
I: Inf. Gluteal Nerve (L5-S2 PD)
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| Gluteus Medius | O: Upper lat. Aspect of the wing of ilium
I: Converges with G.Min on Greater Trochanter
A: Main abductors of femur. Prevent hip adduction in stance.
I: Superior Gluteal Nerve (L4-S1 PD)
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| Gluteus Minimus | O: Same as G. Medius but inferior
I: Converges with G. Min on Greater Trochanter
A: Main abductors of femur. Prevent hip adduction in stance.
I: Superior Gluteal Nerve (L4-S1 PD)
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| TFL | O:Anterior-most part of iliac crest
I: Descends vertically and inserts into ant. portion of the IT band (1/3 of the way down)
A: Contributes to thigh flexion and IR. Not primary mover
I: Superior Gluteal Nerve (L4-S1 PD)
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| Piriformis | O: Deep or ventral aspect of the sacrum
I: Fibers pass anterolaterally through the greater sciatic foramen (which muscle fills). Medial aspect of greater trochanter.
A: ER femur
I: (S1, S2 PD)
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| Superior Gemellus | O: Ischial spine
I: join tendon of Obturator Internus into greater trochanter
A: ER femur
I: (L5-S2 AD)
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| Inferior Gemellus | O: Ischial tuberosity
I: join tendon of Obturator Internus into greater trochanter
A: ER femur
I: (L4-S1 AD)
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| Obturator Internus | O: Deep aspect of the rim of obturator foramen
I: Medial aspect of the greater trochanter
Note: tendon glides around smooth bony ant. wall of lesser sciatic foramen to insertion
A: ER femur
I: (L5-S2 AD)
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| Quadratus Femoris | O: Lateral aspect of ischial body
I: fibers pass laterallt. Central aspect of the posterior intertrochanteric region of the femur
A: ER femur
I: (L4-S1 AD)
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Created by:
Phillypino
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