LE Muscles Flashcards
1
Q
Gluteus Maximus Action
A
Extension of Thigh
Extension of Trunk when Lower Extremity is Fixed
Assists in External Rotation of Hip
2
Q
Gluteus Maximus Origin
A
Post Ilium to Post Gluteal Line, Dorsal Surface of Sacrum and Coccyx, Sacrotuberous Ligament
3
Q
Gluteus Maximus Insertion
A
Gluteal Tuberosity of the Femur and Iliotibial tract that inserts on lateral tibial condyle
4
Q
Gluteus Maximus Innervation
A
Inferior Gluteal Nerve (L5, S1, S2)
5
Q
Gluteus Medius Action
A
Abduction and Internal Rotation of Thigh
Abduction of Pelvis
6
Q
Gluteus Medius Origin
A
External Surface of Ilium between anterior and posterior gluteal line
7
Q
Gluteus Medius Insertion
A
Lateral Surface of Greater Trochanter of Femur
8
Q
Gluteus Medius Innervation
A
Superior Gluteal Nerve (L4, L5-S1)
9
Q
Gluteus Minimus Action
A
Abduction and Internal Rotation of Thigh
Abduction of Pelvis
10
Q
Gluteus Minimus Origin
A
External Surface of Ilium between anterior and inferior gluteal lines
11
Q
Gluteus Minimus Insertion
A
Anterior Surface of greater trochanter of femur
12
Q
Gluteus Minimus Innervation
A
Superior Gluteal Nerve (L4, L5-S1)
13
Q
Obturator Externus Action
A
External Rotation of Thigh
Steadies Femur
14
Q
Obturator Externus Origin
A
Margins of Obturator Foramen and Membrane (Outside)
15
Q
Obturator Externus Insertion
A
Trochanteric Fossa of Femur
16
Q
Obturator Externus Innervation
A
Obturator Nerve (L3- L4)
17
Q
Obturator Internus Action
A
External Rotation of Extended Thigh
Abduction of Flexed Thigh
Steadies Femoral Head
18
Q
Obturator Internus Origin
A
Pelvic Surface of Obturator Foramen and Surrounding Bones
19
Q
Obturator Internus Insertion
A
Medial Surface of Greater Trochanter; blending with gemelli insertion
20
Q
Obturator Internus Innervation
A
Nerve to Obturator Internus and Superior Gemelli (L5-S1)
21
Q
Piriformis Action
A
External Rotation of Extended Thigh
Abduction of Flexed Thigh
Steadies Femoral Head
22
Q
Piriformis Origin
A
Anterior Surface of Sacrum and Sacrotuberous Ligament
23
Q
Piriformis Insertion
A
Superior Border of Greater Trochanter of Femur
24
Q
Gemellus Superior Action
A
External Rotation of Extended Thigh
Abduction of Flexed Thigh
Steadies Femur
25
Gemellus Superior Origin
Ischial Spine
26
Gemellus Superior Insertion
Medial Surface of Greater Trochanter
27
Gemellus Superior Innervation
Obturator Internus Nerve (L5- S1)
28
Gemellus Inferior Action
External Rotation of Extended Thigh
Abduction of Flexed Thigh
Steadies Femur
29
Gemellus Inferior Origin
Ischial Tuberosity
30
Gemellus Inferior Insertion
Medial Surface of Greater Trochanter
31
Gemellus Inferior Innervation
Quadratics Femoris Nerve
32
Quadratis Femoris Action
External Rotation of Thigh
| Steadies Femoral Head
33
Quadratis Femoris Origin
Lateral Border of Ischial Tuberosity
34
Quadratis Femoris Insertion
Quadratis Tubercle on Interochanteric crest of Femur
35
Quadratus Femoris Innervation
Quadratis Femoris Nerve (L5- S1)
36
Rectus Femoris Action
Flexes Thigh
| Extends Leg
37
Rectus Femoris Origin
Anterior Inferior Iliac Spine and the Superior Part of the Acetabulum
38
Rectus Femoris Insertion
To base of patella via quad tendon and by the patellar ligament to tibial tuberosity
39
Rectus Femoris Innervation
Femoral Nerve (L2, L3, L4)
40
Vastus Lateralis Action
Extends Leg at Knee Joint
41
Vastus Lateralis Origin
Greater Trochanter, lateral lip of linea aspera, lateral inter muscular septum
42
Vastus Lateralis Insertion
To Base of Patella via quad tendon and by the patellar ligament to tibial tuberosity
43
Vastus Lateralis Innervation
Femoral Nerve (L2, L3, L4)
44
Vastus Medialis Action
Extends Leg at Knee Joint
45
Vastus Medialis Origin
Intertrochanteric line and medial lip of linea aspera
46
Vastus Medialis Insertion
To base of patella via quad tendon and by the patellar ligament to tibial tuberosity
47
Vastus Medialis Innervation
Femoral Nerve (L2, L3, L4)
48
Vastus Intermedius Action
Extends Leg at Knee Joint
49
Vastus Intermedius Origin
Anterior and Lateral Surfaces of body of femur
50
Vastus Intermedius Insertion
To base of patella via quad tendon, and by the patellar ligament to tibial tuberosity
51
Vastus Intermedius Innervation
Femoral Nerve (L2, L3, L4)
52
Tensor Fascia Lata Action
Abduction, Internal Rotation and Flexion of Hip Joint
| Assists with Knee Extension
53
Tensor Fascia Lata Origin
Anterior Superior Iliac Spine and the anterior part of the iliac crest
54
Tensor Fascia Lata Insertion
Iliotibial Tract (With Fibers of Gluteus Maximus)to Lateral Tibial Condyle
55
Tensor Fascia Lata Innervation
Superior Gluteal Nerve (L4- S1)
56
Sartorius Action
Flexion, Abduction, External Rotation at Hip Joint
| Flexes Leg at Knee Joint
57
Sartorius Origin
Anterior Superior Iliac Spine and Superior Part of Notch Inferior to it
58
Sartorius Insertion
Superior, medial tibia (Covers tendons of the gracious and semitendinosus)
59
Sartorius Innervation
Femoral Nerve (L2- L3)
60
Gracillis Action
Adduction of Thigh
| Flexes Leg, Assists with Internal Rotation of Tibia at Knee
61
Gracillis Origin
Body and Inferior Ramus of Pubis
62
Gracillis Insertion
Superior, medial tibia
63
Gracillis Innervation
Obturator Nerve (L2- L3) Anterior Branch
64
Pectineus Action
Adduction, Flexion of Thigh
| Assists with Internal Rotation of Thigh
65
Pectineus Origin
Superior Ramus of Pubis
66
Pectineus Insertion
Pectineal Line of Femur, inferior to lesser trochanter
67
Pectineus Innervation
Femoral Nerve (L2- L3) Sometimes Obturator Nerve
68
Adductor Brevis Action
Adduction of Thigh
| Assists with Flexion of Thigh
69
Adductor Brevis Origin
Body and inferior ramus of Pubis
70
Adductor Brevis Insertion
Pectineal Line and Proximal Part of Linea Aspera of Femur
71
Adductor Brevis Innervation
Obturator Nerve (Anterior Branch) (L2, L3, L4)
72
Adductor Longus Action
Adduction of Thigh
73
Adductor Longus Origin
Body of Pubis Inferior to Pubic Crest
74
Adductor Longus Insertion
Middle 1/3 of Linea Aspera
75
Adductor Longus Innervation
Obturator Nerve (Anterior Branch) (L2, L3, L4)
76
Adductor Magnus Action
Adductor Portion- Adducts and Flexes Thigh
| Hamstring Portion- Adducts and Extends Thigh
77
Adductor Magnus Origin
Add Portion- Inferior Ramus Pubis, Ramus of Ischium
| Hamstring- Ischial Tuberosity
78
Adductor Magnus Insertion
Adductor- Gluteal Tuberosity, Linea Aspera, Medial Supracondylar Line
Hamstring- Adductor Tubercle of Femur
79
Adductor Magnus Innervation
Adductor- Obturator Nerve (Posterior Branch) (L2, L3, L4)
| Hamstring- Tibial Portion Sciatic Nerve (L4)
80
Biceps Femoris (Long Head)Action
Flexion of Leg, External Rotation of Tibia on Femur, Extends Thigh
81
Biceps Femoris (Long Head) Origin
Ischial Tuberosity
82
Biceps Femoris (Long Head) Insertion
Lateral Head of Fibula
83
Biceps Femoris Long Head Innervation
Tibial Portion of Sciatic Nerve (L5, S1, S2)
84
Biceps Femoris Short Head Action
Flexion of Leg, External Rotation of Tibia on Femur
85
Biceps Femoris Short Head Origin
Linea Aspera and Lateral Supracondylar Line
86
Biceps Femoris Insertion
Lateral Head of Fibula
87
Biceps Femoris Innervation
Lateral Head of Fibula
88
Biceps Femoris Short Head Innervation
Common Peroneal Nerve (L5, S1, S2)
89
Semitendinosus Action
Extends Thigh, Flexes Leg and Internal Rotation of Tibia on Femur
90
Semitendinosus Origin
Ischial Tuberosity
91
Semitendinosus Insertion
Medial Surface of Superior Tibia
92
Semitendinosus Innervation
Tibial Portion of Sciatic Nerve (L5, S1, S2)
93
Semimembranosus Action
Extends Thigh
| Flexes Leg and Internal Rotation of Tibia on Femur
94
Semimembranosus Origin
Ischial Tuberosity
95
Semimembranosus Insertion
Posterior Part of Medial Tibial Condyle and Reflected Attachment (Oblique Popliteal Ligament)
96
Semimembranosus Innervation
Tibial Portion of Sciatic Nerve (L5, S1-S2)
97
Tibialis Anterior Action
Strong Dorsal Flexor of the Foot, Inversion of Foot
98
Tibialis Anterior Origin
Lateral Condyle and Superior Half of Lateral Surface of Tibia and Interosseous Membrane
99
Tibialis Anterior Insertion
Medial/Plantar Surface of Medial Cuneiform, base of 1st Metatarsal
100
Tibialis Anterior Innervation
Deep Peroneal Nerve (L4- L5)
101
Extensor Hallucis Longis
Extension of Big Toe, Dorsal Flexion of Ankle, Invertor of Foot
102
Extensor Hallucis Longus Origin
Middle Anterior Fibula, Interosseous Membrane
103
Extensor Hallucis Longus Insertion
Dorsal Aspect of Base of Distal Phalanx of Great Toe
104
Extensor Hallucis Longus Innervation
Deep Peroneal Nerve (L4, L5- S1)
105
Extensor Digitorum Longus Action
Dorsal Flexion of Ankle
Extends Lateral 4 Digits
Weak Evertor of Foot
106
Extensor Digitorum Longus Origin
Lateral Condyle Tibia, proximately 3/4 medial surface of fibula, Interosseous membrane
107
Extensor Digitorum Longus Insertion
Base of Middle and Distal Phalanges of Lateral 4 Toes
108
Extensor Digitorum Longus Innervation
Deep Peroneal Nerve (L4- L5, S1)
109
Fibularis (Peroneus)tertius Action
Dorsal Flexion of Ankle
| Assists in Eversion of Foot
110
Fibularis (Pereneus) Tertius Origin
Inferior 1/3 of Anterior Surface of Fibula and Interosseous Membrane
111
Fibularis (Peroneus) Tertius Insertion
Dorsum of Base of 5th Metatarsal
112
Fibularis (Peroneus) Tertius Innervation
Deep Peroneal Nerve (L4, L5- S1)
113
Gastrocnemius Action
Plantar Flexion of Ankle
Flexes Leg at Knee Joint
Inverts Foot
114
Gastrocnemius Origin
Lateral Head- Lateral Aspect of Lateral Condyle of Femur
| Medial Head- Popliteal surface of femur, superior to medial condyle
115
Gastrocnemius Insertion
Posterior Calcaneus Via Calcaneal Tendon
116
Gastrocnemius Innervation
Tibial Nerve (S1- S2)
117
Soleus Action
Plantar Flexion of Ankle
| Inversion of Foot
118
Soleus Origin
Posterior Aspect Head of Fibula
Superior 1/4 Posterior Surface of Fibula
Soleal Line and Medial Border of Tibia
119
Soleus Insertion
Posterior Surface of Calcanus via Calcaneal Tendon
120
Soleus Innervation
Tibial Nerve (S1- S2)
121
Plantaris Action
Weakly Assists in Plantar Flexion of Ankle and Knee Flexion
122
Plantaris Origin
Inferior End of Lateral Supracondylar Line of Femur and Oblique Popliteal Ligament
123
Plantaris Insertion
Posterior Surface of Calcaneus via Calcaneal Tendon
124
Tibialis Posterior Action
Main Invertor of Foot
Plantar Flexion of Ankle
Resist Collapse of Arch
125
Tibialis Posterior Origin
Interosseous Membrane, Posterior Surface of Tibia Inferior to Soleal Line and posterior surface of Fibula
126
Tibialis Posterior Insertion
Tuberosity of Navicular, All Cuneiform Bones, Substentaculum Tali, Cuboid, Base of 2nd, 3rd, and 4th Metatarsal
127
Tibialis Posterior Innervation
Tibial nerve (L4- L5)
128
Flexor Hallucis Longus Action
Flexes Big Toe, Plantar Flexion of Ankle, Inversion of Foot
| Supports Medial Long Arch
129
Flexor Hallucis Longus Origin
Inferior 2/3 of Posterior Surface of Fibula and Inferior Part of Interosseous Membrane
130
Flexor Hallucis Longus Insertion
Base of Distal Phalanx of Big Toe
131
Flexor Hallucis Longus Innervation
Tibial Nerve (S2- S3)
132
Flexor Digitorum Longus Action
Flexes Last 4 Digits
Plantar Flexion of Ankle
Inversion of Foot
Supports Long Arch
133
Flexor Digitorum Longus Origin
Medial Part of Posterior Surface of Tibia, inferior to Soleal line
134
Flexor Digitorum Longus Insertion
Base of Distal Phalanges of Lateral 4 Toes
135
Flexor Digitorum Longus Innervation
Tibial Nerve S2- S3
