Posterior Hip and Thigh MOI

Question 1

Gluteus Maximus

Answer 1

A: Abducts, laterally rotates, extends hip
O: Post. gluteal line of ilium, post. and inf. sacrum
I: Upper IT Tract, Gluteal tuberosity of femur
N: Inferior Gluteal Nerve

Question 2

Gluteus Medius

Answer 2

A: Abducts Hip
O: Gluteal surface of ilium
I: Lat. surface of greater trochanter of femur
N: superior gluteal nerve

Question 3

Biceps Femoris

Answer 3

A: 
Long head: Hip ext, knee flexion. 
Short head: knee flexion
O: 
Long head: Ischial tuberosity
Short head: linea aspera of femur
I: Lateral surface of fibular head
N: tibial nerve

Question 4

Semitendinosus

Answer 4

A: Knee flexion
O: Ischial tuberosity
I: medial superior shaft of tibia
N: Tibial nerve

Question 5

Semimembranosus

Answer 5

A: knee flexion
O: Ischial tuberosity
I: Posterior medial condyle of tibia
N: Tibial nerve

Question 6

Gluteus Minimus

Answer 6

A: Abduction, Int & Ext Rotation
O: Inf. Gluteal Surface of Ilium
I: Ant. Greater troch. of femur

Question 7

Piriformis

Answer 7

A: Ext rotation, extension, abduction of hip
O: Ant. lateral sacrum(S1-S4)
I: Sup. greater trochanter of femur

Question 8

Superior Gemellus

Answer 8

A: Ext. rotation, extension, abduction of hip
O: Ischial Spine
I: Medial greater trochanter

Question 9

Obturator Internus

Answer 9

A: Laterally rotates thigh when extended, abducts thigh when flexed
O: inner surface of obturator foramen
I: medial greater trochanter

Question 10

Inferior Gemellus

Answer 10

A: Ext. rotation, extension, abduction of hip
O: Ischial tuberosity
I: Medial greater trochanter

Question 11

Quatratus Femoris

Answer 11

A: Ext. rotation, abduction of hip
O: Ext. ischial tuberosity
I: intertrochanteric crest of femur