Gluteal Group

Question 1

Gluteus Maximus
Origin

Answer 1

ORIGIN: posterior 1/3 of iliac crest, Posterior Superior Iliac Spine; the lateral edge of the sacrum & coccyx; the sacrotuberous ligament.

Question 2

Gluteus Maximus
Insertion

Answer 2

INSERTION:
Upper fibers: the posterior part of the iliotibial tract & the fasciae latae muscles

Lower fibers: the gluteal tuberosity of the proximal femur, Gerdys lateral tibial tubercle

Question 3

Gluteus Maximus
Action & Innervation

Answer 3

ACTION: Extension of the femur; lateral rotatio & stabilization of the hip and knee joints; external rotation of the femur.

NERVE SUPPLY: Inferior gluteal nerve (L5-S2).

Question 4

Gluteus Medius
Origin & Insertion

Answer 4

ORIGIN: between the anterior & posterior gluteal lines of the ilium

INSERTION: Lateral surface of the greater trochanter

Question 5

Gluteus Medius
Action & Innervation

Answer 5

ACTION: Abduction of the hip & stabilization of the pelvis
Anterior fibers: flexion and internal rotation;
Posterior fibers: extension and external rotation.

NERVE SUPPLY: Superior gluteal nerve (L4-S1).

Question 6

Gluteus Minimus
Origin & Insertion

Answer 6

ORIGIN: between the external anterior and inferior gluteal lines of the ilium.

INSERTION: Greater trochanter of the femur.

Question 7

Gluteus Minimus
Action & Innervation

Answer 7

ACTION: Abduction of the hip and stabilization of the pelvis; Anterior part: flexion and internal rotation; Posterior part: extension and external rotation.

NERVE SUPPLY: Superior gluteal nerve (L4-S1).

Question 8

TFL
Tensor Fasciae Latae
Origin & Insertion

Answer 8

ORIGIN: Anterior superior iliac spine and the anterior part of the iliac crest.

INSERTION: Iliotibial tract.

Question 9

TFL
Tensor Fasciae Latae
Action & Innervation

Answer 9

ACTION: Tenses the fascia lata; abduction, flexion and internal rotation at the hip joint.

NERVE SUPPLY: Superior gluteal nerve (L4-S1).