gluteal region & posterior thigh Flashcards
1
Q
glut max. origin
A
- ileum: posterior to posterior gluteal line
- Sacrum and Coccyx: posterior surface
- Sacrotuberous ligament
2
Q
glut max. insertion
A
- lateral condyle of tibia via iliotibial tract
- gluteal tuberosity of femur
3
Q
glut max. action
A
- extension of femur
- lateral rotation of femur.
- abduction of femur (upper fibers)
- adduction of femur (lower fibers)
4
Q
glut max. innervation
A
Inferior Gluteal Nerve
5
Q
glut max. artery
A
superior gluteal artery
6
Q
glut medius origin
A
Ileum: between posterior and anterior gluteal lines
7
Q
glut medius: insertion
A
greater trochanter of femur: lateral surface
8
Q
glut medius action:
A
- abduction of femur
- medial rotation & flexion of femur (anterior fibers)
- Lateral rotation & extension of femur (posterior fibers)
- steadies pelvis when opposite limb is raised
9
Q
glut medius innervation
A
superior gluteal nerve
10
Q
glut medius artery
A
superior gluteal artery
11
Q
glut minimus origin
A
Ileum: between anterior and inferior gluteal lines
12
Q
glut minimus: insertion
A
greater trochanter of femur: anterior surface
13
Q
glut minimus action
A
- abduction of femur
- medial rotation of femur
- steadies pelvis when opposite limb is raised
14
Q
glut minimus innervation
A
superior gluteal nerve
15
Q
glut minimus artery
A
superior gluteal artery
16
Q
tensor of fasica lata origin
A
ASIS
Iliac Crest
17
Q
tensor of fasica lata insertion
A
lateral condyle of tibia via iliotibial tract
18
Q
tensor of fasica lata action
A
- medial rotation of femur
- abduction of femur
- flexion at hip
19
Q
tensor of fasica lata innervation
A
superior gluteal nerve
20
Q
tensor of fasica lata artery
A
superior gluteal artery
21
Q
periformis origin
A
sacrum: anterior surface
22
Q
periformis insertion
A
greater trochanter of femur: superior border
23
Q
periformis action
A
- lateral rotation of femur
- abduction of femur
3.stabilize hip joint
24
Q
periformis innervation
A
anterior rami of S1-S2
25
obturator internus origin
obturator membrane: pelvic surface ( and surrounding bone)
26
obturator internus insertion
greater trochanter of femur: medial surface (trochanteric fossa of femur)
27
obturator internus action
1. lateral rotation of femur
2. abduction of femur
3. stabilize hip joint
28
obturator internus innervation
nerve to obturator internus (L5-S1)
29
obturator internus artery
superior gluteal artery
30
periformis artery
superior, inferior gluteal artery
internal pudendal artery
31
superior gemellus origin
ischial spine
32
superior gemellus insertion
greater trochanter of femur: medial surface (trochanteric fossa of femur)
33
superior gemellus action
1. lateral rotation of femur
2. abduction of femur
3. stabilize hip joint
34
superior gemellus innervation
nerve to obturator internus (L5-S1)
35
inferior gemellus origin
ischial tuberosity
36
inferior gemellus insertion
greater trochanter of femur: medial surface (trochanteric fossa of femur)
37
inferior gemellus innervation
nerve to quadratus femoris (L5-S1)
38
quadratus femoris origin
ischial tuberosity: lateral border
39
quadratus femoris insertion
intertrochanteric crest of femur
40
quadratus femoris action
1. lateral rotation of femur
2. stabilize hip joint
41
quadratus femoris innervation
nerve to quadratus femoris (L5-S1)
42
quadratus femoris artery
inferior gluteal artery
43
superior gemellus artery
inferior gluteal artery
44
inferior gemellus artery
inferior gluteal artery
45
what are the 6 small lateral rotators of the femur?
1. periformis
2. obturator internus
3. superior gemellus
4. inferior gemellus
5. quadratus femoris
6. obturator externus
46
what are the 3 muscles of the posterior thigh?
1. semitendinosus
2. semimembrinosus
3. biceps femoris (LH & SH)
47
Semitendinosus origin
ischial tuberosity
48
Semitendinosus insertion
proximal tibia: medial aspect
49
Semitendinosus action
1. extension of femur
2. flexion at knee
3. medial rotation of leg
50
Semitendinosus innervation
tibial division of sciatic nerve
51
Semitendinosus artery
1. femoral artery: perforating branches
2. popliteal artery
3. inferior gluteal artery
52
Semimembranosus origin
ischial tuberosity
53
Semimembranosus insertion
Tibia: medial condyle
54
Semimembranosus action
1. extension of femur
2. flexion at knee
3. medial rotation of leg
55
Semimembranosus innervation
tibial division of sciatic nerve
56
Semimembranosus artery
femoral & popliteal artery: perforating branches
inferior gluteal artery
57
biceps femoris long head origin
ischial tuberosity
58
biceps femoris long head insertion
head of fibula: lateral aspect
59
biceps femoris long head action
1. extension of femur (unique to LH)
2. flexion at knee
3. lateral rotation of leg
60
biceps femoris long head innervation
tibial division of sciatic nerve
61
biceps femoris short head origin
lateral lip of linea aspera
62
biceps femoris short head action
1. flexion at knee
2. lateral rotation of leg
63
biceps femoris short head innervation
common fibular division of sciatic nerve
64
biceps femoris long head artery
deep femoral artery
65
biceps femoris short head artery
deep femoral artery
66
what action does biceps femoris LH do that SH doesn't?
1. extension of femur
67
what is trandelenberg gait
hip of unnafected side drops due to weak hip abductors (glut medius/minimus) (see lecture 9 slide 16)
