Muscles + innervation Flashcards
Hip flexors
Primary
1. Psaos Major
2. Iliacus
(combined - iliopsoas)
Secondary
1. Pectineus
2. Rectus Femoris
3. Sartorius
Hip extensors
Primary
1. Gluteus Maximus
WITH
Hamstring group
2. Semimembranosus
3. Semitendinosus
4. Long head Biceps formoris
Secondary
1. Adductor magnus
Hip Abduction
Primary
1. Gluteus Medius
2. Gluteus Minimus
3. Tensor Fasciae Latae
Secondary
1. Piriformis
2. Sartorius
3. Gluteus Maximus
Hip Adduction
Primary
1. Adductor Brevis
2. Adductor Longus
3. Adductor Magnus
4. Gracilis
Secondary
1. Pectineus
What nerve supplies the hip flexors?
Femoral nerve
What nerve supplies the hip extensors?
Guteus maximus - inferior gluteal nerve
Hamstring group (semimembranosus, semitendinosus, long head biceps femoris) - tibial part of sciatic nerve
What nerve supplies the hip abductors?
Superior gluteal nerve
What nerve supplies the hip adductors?
Obturator nerve
Hip medial (internal) rotation
Primary
1. Tensor fascia latae
2. Gluteus minimus
Secondary
1. Gluteus medius
2. Gluteus maximus
3. Iliotibial tract
4. Pectineus
What nerve supplies hip internal rotators?
Superior gluteal nerve
Hip lateral (external) rotation
- Gluteus maximus
- Superior gemellus
- Inferior gemellus
- Obturator externus
- Obturator internus
- Quadratus femoris
- Piriformis
What nerve supplies hip external rotators?
Sacral plexus
Psoas major
O: side of spine
I: lesser trochanter
Iliacus
O: iliac crest
I: lesser trochanter
Pectineus
O: superior pubic ramus
I: pectineal line of femur
Rectus femoris
O: anterior inferior iliac spine
I: tibial tuberosity - via quadriceps femoris muscle and patellar ligament
Sartorius
O: ASIS (anterior superior iliac spine)
I: medial aspect of proximal part of tibia
Gluteus maximus
O: ilium, posterior to gluteal line
I: gluteal tuberosity on femur via iliotibial tract
Semitendinosus
O: ischial tuberosity
I: medial aspect of proximal part of tibia
Semimembranosus
O: ischial tuberosity
I: medial condyle of tibia
Long head biceps femoris
O: ischial tuberosity
I: head of fibula
Adductor magnus
O: inferior pubic ramus, ramus of ischium, ischial tuberosity
I: gluteal tuberosity, linea aspera, medial supracondylar line, adductor tubercle
Gluteus medius
O: ilium between anterior + posterior gluteal lines
I: lateral aspect of greater trochanter
Gluteus minimus
O: ilium between anterior + inferior gluteal lines
I: anterolateral aspect of greater trochanter
