Hip / Thigh Muscles Flashcards
(31 cards)
1
Q
Iliopsoas Group (2)
A
Psoas Major + Ilacus
2
Q
Psoas Major
A
origin = transverse bodies of all lumbar vert insertion = lesser trochanter of femur action = hip flexion (or trunk flexion if femur is stable) innervation = lumbar plexus
3
Q
Iliacus
A
origin = iliac fossa of ilium insertion = lesser trochanter of femur action = hip flexion innervation = femoral nerve
4
Q
Gluteal Muscles of Thigh (4)
A
extend and rotate hip joint
- Gluteus Maximus
- Gluteus Medius
- Gluteus Minimus
- Tensor Fascia latae (TFL)
5
Q
Gluteus Maximus
A
origin = posterior gluteal line of ilium, lower sacrum, side of coccyx insertion = gluteal tuberosity action = abducts, extends, laterally rotates hip joint innervation = inferior gluteal nerve
6
Q
Gluteus Medius
A
origin = gluteal surface of ilium insertion = greater trochanter of femur action = abducts thigh, stabilizes hip joint innervation = superior gluteal nerve
7
Q
Gluteus Minimus
A
origin = gluteal surface of ilium insertion = greater trochanter of femur action = abducts thigh, stabilizes hip joint innervation = superior gluteal nerve
8
Q
Tensor Fascia latae (TFL)
A
origin = ASIS insertion = iliotibial tract action = abducts + internally rotates thigh, stabilizes hip and knee joints innervation = superior gluteal nerve
9
Q
Lateral Rotators of thigh (deep) (6)
A
small muscles that stabilize and laterally rotate hip
- Obturator Externus
- Obturator Internus
- Superior Gemellus
- Inferior Gemellus
- Quadratus femoris
- Piriformus
10
Q
Obturator Externus
A
action = lateral rotation of thigh innervation = obturator nerve
11
Q
Obturator Internus
A
action = lateral rotation of thigh innervation = spinal nerves S1-3
12
Q
Superior Gemellus
A
action = later rotation, adduction, extension of hip joint innervation = spinal nerves L5, S1
13
Q
Inferior Gemellus
A
action = lateral rotation, adduction, extension of hip joint innervation = spinal nerves L5, S1
14
Q
Quadratus femoris
A
action = lateral rotation, adduction of hip joint innervation = spinal nerves L5, S1
15
Q
Piriformus
A
action = lateral rotation, adduction, extension of hip joint innervation = spinal nerves L5-S2
16
Q
Hamstring Group (Posterior) (3)
A
- Biceps femoris
- Semitendinosis
- Semimembranosus
17
Q
Biceps femoris
A
origin = long head: ischial tuberosity short head: linea aspera of femur insertion = head of fibula (lateral surface) action = knee flexion, hip extension innervation = long head: tibial nerves short head: common fibular nerves
18
Q
Semitendinosis
A
origin = ischial tuberosity insertion = medial surface of tibia action = knee flexion innervation = tibial nerve
19
Q
Semimembranosus
A
origin = ischial tuberosity insertion = medial condyle of tibia action = knee flexion innervation = tibial nerve
20
Q
Quadriceps (Anterior) (4)
A
- Rectus femoris
- Vastus medialis
- Vastus lateralis
- Vastus intermedius
21
Q
Rectus femoris
A
origin = AIIS insertion = common tendon of quadriceps to tibial tuberosity action = knee extension, hip flexion innervation = femoral nerve
22
Q
Vastus medialis
A
origin = intertrochanteric line of femur insertion = patella via quadriceps tendon, tibial tuberosity action = knee extension innervation = femoral nerve
23
Q
Vastus lateralis
A
origin = greater trochanter of femur insertion = patella via quadriceps tendon, tibial tuberosity action = knee extension innervation = femoral nerve
24
Q
Vastus intermedius
A
origin = greater trochanter of femur insertion = patella via quadriceps tendon, tibial tuberosity action = knee extension innervation = femoral nerve
25
Medial Compartment - Adductor Group (6)
1. Adductor longus
2. Adductor brevis
3. Adductor magnus
4. Gracilis
5. Pectineus
6. Sartorius
26
Adductor longus
```
origin = front of pubis
insertion = linea aspera
action = adducts, medially rotates thigh
innervation = obturator nerve
```
27
Adductor brevis
```
origin = superior + inferior rami of pubis
insertion = medial shaft of femur into upper linea aspera
action = adducts, medially rotates thigh
innervation = obturator nerve
```
28
Adductor magnus
```
origin = inferior ramus of pubis
insertion = adductor tubercle, medial condyle of femur, linea aspera
action = adducts, medially rotates thigh
innervation = obturator nerve
```
29
Gracilis
```
origin = lower half of pubic symphysis
insertion = superior shaft of tibia
action = adductor of thigh, flexes knee
innervation = obturator nerve
```
30
Pectineus
```
origin = pectineal line
insertion = posterior surface of femur
action = adducts thigh
innervation = femoral nerve
```
31
Sartorius
```
origin = ASIS
insertion = superior shaft of tibia
action = hip flexion, abduction, external rotation; knee flexion, external rotation
innervation = femoral nerve
```
