Movements of the Hip Joint - The Muscles

Question 1

What movements can be permitted by the Hip Joint?

Answer 1

Flexion, Extension, Abduction, Adduction, Medial rotation and Lateral rotation

Question 2

Which muscles enable flexion at the hip joint?

Answer 2

Pectineus, Iliopsoas, Rectus Femoris, Sartorius

Question 3

Name the innervations of the hip flexors

Answer 3

Pectineus - femoral nerve but may also receive a branch from the obturator nerve
Iliopsoas - iliacus innervated by the femoral nerve, psoas major innervated by the anterior rami of L1-L3
Rectus femoris - femoral nerve
Sartorius - femoral nerve

Question 4

Which muscles enable extension at the hip joint?

Answer 4

The hamstrings:
Gluteus maximus
Biceps femoris 
Semitendinosus 
Semimembranosus

Question 5

Name the innervations of the hip extensors

Answer 5

Gluteus maximus - inferior gluteal nerve
Biceps femoris - short head - common fibular nerve, long head - tibial nerve
Semitendinosus - tibial nerve
Semimembranosus - tibial nerve

Question 6

Which muscles enable abduction at the hip joint?

Answer 6

Gluteus medius
Gluteus minimus
Tensor fascia lata

Question 7

Which nerve supplies the hip abductors?

Answer 7

superior gluteal nerve

Question 8

Which muscles enable adduction of the hip?

Answer 8

Adductor longus 
Adductor brevis 
Adductor magnus 
Pectineus
Gracilis 
Obturator externus

Question 9

Name the innervations of the hip adductors

Answer 9

Adductor longus - adductor part innervated by the obturator nerve, hamstring part innervated by the tibial nerve
Adductor brevis - obturator nerve
Adductor magnus - obturator nerve
Pectineus - femoral nerve but may receive a branch from the obturator nerve
Gracilis - obturator nerve
Obturator externus - obturator nerve

Question 10

Which muscles enable lateral rotation of the hip?

Answer 10

Gluteus maximus 
Biceps femoris 
Deep gluteals:
-Piriformis
-Superior gemelli 
-Obturator internus
-Inferior gemelli 
-Quadratus femoris

Question 11

Name the nerves which innervate the lateral rotators of the hip

Answer 11

Gluteus maximus - inferior gluteal nerve
Biceps femoris - long head - tibial nerve, short head - common fibular nerve
Piriformis - nerve to piriformis
Superior gemelli - nerve to obturator internus
Obturator internus - nerve to obturator internus
Inferior gemelli - nerve to quadratus femoris
Quadrates femoris - nerve to quadratus femoris

Question 12

Which muscles enable medial rotation of the hip?

Answer 12

Gluteus medius
Gluteus minimus
Semimembranosus
Semitendonosus

Question 13

Name the nerves which innervate the medial rotators of the hip

Answer 13

Gluteus medius - superior gluteal nerve
Gluteus minimus - superior gluteal nerve
Semimembranosus - tibial nerve
Semitendonosus - tibial nerve