Gluteal Muscles Reference Materials | Western Sydney University

University:
Western Sydney University
Course:
MEDI 2003 | Clinical Sciences 2
Academic year:

2024
Views:

311

Pages:

2
Author:

Mariam A. A.

GLUTEAL MUSCLES Superficial Gluteal Muscles Name Tensor fascia latae Origin Outer lip of anterior iliac crest, Anterior superior iliac spine (ASIS Insertion Lateral condyle of tibia (via iliotibial tract) Innervation Superior gluteal nerve (L4S1) Gluteus maximus Lateroposterior surface of sacrum and coccyx, gluteal surface of ilium (behind posterior gluteal line), thoracolumbar fascia, Sacrotuberous ligament Gluteal surface of ilium (between anterior and posterior gluteal lines) Gluteal surface of ilium (between anterior and inferior gluteal lines) Iliotibial tract, gluteal tuberosity of femur Inferior gluteal nerve (L5, S1, S2) Lateral aspect of greater trochanter of femur Superior gluteal nerve (L4S1) Hip joint: Thigh abduction, thigh internal rotation (anterior part); Pelvis stabilization Anterior aspect of greater trochanter of femur Superior gluteal nerve (L4S1) Hip joint: Thigh abduction, thigh internal medial rotation (anterior part); Pelvis stabilization Gluteus medius Gluteus minimus Function Hip joint: Thigh internal rotation, (Weak abduction); Knee joint: Leg external rotation, (Weak leg flexion/ extension); Stabilizes hip & knee joints Hip joint: Thigh extension, thigh external rotation, thigh abduction (superior part), thigh adduction (inferior part) Deep Gluteal Muscles Name Piriformis Origin Anterior surface of the sacrum (between the S2 and S4), Gluteal surface of ilium (near posterior inferior iliac spine), (Sacrotuberous ligament) Ischial spine Insertion (Apex of) Greater trochanter of the femur Innervation Nerve to piriformis (S1-S2) Function Hip joint: Thigh external rotation, Thigh abduction (from flexed hip); Stabilizes head of femur in acetabulum Medial surface of greater trochanter of femur (via tendon of obturator internus) Nerve to obturator internus (L5-S1) Obturator internus Posterior surface of the obturator membrane; bony boundaries of the obturator foramen Medial surface of greater trochanter of femur Nerve to obturator internus (L5 and S1) Inferior gemellus Ischial tuberosity Medial surface of greater trochanter of femur (via tendon of obturator internus) Nerve to quadratus femoris (L4/5, S1) Obturator externus Anterior surface of obturator membrane, bony boundaries of obturator foramen Trochanteric fossa of femur Obturator (L3, L4) Hip joint: Thigh external rotation, thigh abduction (from flexed hip); stabilizes head of femur in acetabulum • External rotation of extended thigh. • Abduction of flexed thigh. • Stabilization of hip joint Hip joint: Thigh external rotation, thigh abduction (from flexed hip), stabilizes head of femur in acetabulum Hip joint: Thigh external rotation, thigh abduction (from flexed hip); Stabilizes head of femur in acetabulum Super gemellus