Hip Abductors

Question 1

What is the origin, insertion and action for Gluteus medius

Answer 1

Origins - outer surface of ilium
Insertion - lateral greater trochanter
Action - abducts and medially rotates the pelvis (anterior fibres)

Question 2

What is the origin, insertion and action for Gluteus minimus

Answer 2

Origin - outer surface of ilium
Insertions - anterior surface of greater trochanter
Action - abducts and medially rotates the pelvis (anterior fibres)

Question 3

What is the origin, insertion and action for Tensor fasciae latae

Answer 3

Origin - anterior superior iliac spine and lateral iliac crest
Insertions - illiotibial band and Gerdy’s tubercle lateral aspect of proximal tibia
Action - flexes and medially rotates the thigh

Question 4

What is the origin, insertion and action for Piriformis

Answer 4

Origin - internal surface of sacrum and gluteal surface of ilium
Insertion - greater trochanter
Action - lateral rotation and abduction of flexed hip

Question 5

Name all the muscles for hip abduction

Answer 5

Gluteus med and min
Sartorius
TFL
Piriformis (of flexed thigh)