Glute Muscles: Origins, Insertions, and Actions w/ Videos

Posted on 28 Feb 2018 05:14

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The videos and information in this article provide an overview of the muscles of gluteal region, commonly called the glutes.

The first video covers the tensor fasciae latae, gluteus maxiumus, gluteus medius, gluteal minimus and piriformis muscles.

The second video covers the obdurator internus, superior gemellus, inferior gemellus, and quadratus femoris muscles.

Glute Muscle Video Part I

Tensor Fasciae Latae Muscle

Origin: Outer margin of the anterior iliac crest.

Insertion: Iliotibial tract about one-fourth of the way down the thigh.

Action: Flexion of hip, internal rotation of hip as it flexes.

Gluteus Maximus Muscle

Origin: Posterior one-fourth of iliac crest, posterior surface of sacrum and coccyx near ilium, and fascia of lumbar area.

Insertion: Gluteal tuberosity of the femur (lateral surface of greater trochanter of femur) and iliotibial tract posterior aspect iliotibial tract

Action: Extension of hip, external rotation of hip.

Gluteus Medius Muscle

Origin: Lateral surface of ilium just below crest.

Insertion: Greater trochanter of the femur.

Action: Abduction of the hip, external rotation of hip as the hip abducts, internal rotation of the hip.

Gluteus Minimus Muscle

Origin: Lateral surface of ilium just below origin of gluteus medius.

Insertion: Anterior surface of greater trochanter of the femur.

Action: Abduction of hip and internal rotation as femur abducts.

Piriformis Muscle

The piriformis muscle (pronounced pie.ri.for.mis) is one of six deep lateral rotator muscles of the thigh including also the gamellus superior, obturator internus and quadratus femoris.

Origin: The anterior surface of the sacrum.

Insertion: Greater trochanter of the femur.

Action: Lateral rotation (outward) of thigh (femur) and external rotation of hip.

Glute Muscle Video Part II

Obdurator Internus Muscle

Origin: Ischiopubic ramus of pelvis and obturator foramen membrane.

Insertion: Medial aspect of greater trochanter of femur.

Action: Lateral rotation of femur and abduction of flexed femur at hip.

Superior Gemellus Muscle

Origin: Ischial spine (spine of ischium).

Insertion: Medial aspect of greater trochanter of femur.

Action: Lateral rotation of femur at hip joint and abduction of flexed femur at hip, same as the obturator internus.

Inferior Gemellus Muscle

Origin: Ischial tuberosity.

Insertion: Medial aspect of greater trochanter of femur.

Action: Lateral rotation of femur at hip joint and abduction of flexed femur at hip, same as obturator internus.

Quadratus Femoris

Origin: Lateral aspect of iscium just anterior to ischial tuberosity.

Insertion: Quadrate tubercle (tubercle of femur) on intertrochanteric crest of proximal femur.

Action: Lateral rotation of femur.

This page created 28 Feb 2018 05:14
Last updated 17 Mar 2018 02:05

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