The Muscular System - Lower Extremities Flashcards
(128 cards)
1
Q
Psoas major origin
A
transverse bodies of all lumbar vertebra
2
Q
Psoas major insertion
A
lesser trochanter of the femur (with iliacus)
3
Q
Psoas major action
A
hip flexion (or trunk flexion if femur is stationary)
4
Q
Psoas major innervation
A
lumbar plexus
5
Q
Iliacus origin
A
iliac fossa of ilium
6
Q
Iliacus insertion
A
lesser trochanter of femur
7
Q
Iliacus action
A
hip flexion
8
Q
Iliacus innervation
A
femoral nerve
9
Q
Gluteus Maximus origin
A
posterior gluteal line of the ilium, lower sacrum, side of the coccyx
10
Q
Gluteus Maximus insertion
A
gluteal tuberosity
11
Q
Gluteus Maximus action
A
abducts, extends, laterally rotates hip joint
12
Q
Gluteus Maximus innervation
A
inferior gluteal nerve
13
Q
Gluteus Medius origin
A
gluteal surface of the ilium
14
Q
Gluteus Medius insertion
A
greater trochanter of the femur
15
Q
Gluteus Medius action
A
abducts thigh, stabilizes the hip joint
16
Q
Gluteus Medius innervation
A
superior gluteal nerve
17
Q
Gluteus Minimus origin
A
Gluteal surface of the ilium
18
Q
Gluteus Minimus insertion
A
Greater trochanter of the femur
19
Q
Gluteus Minimus action
A
Abducts thigh, stabilizes hip joint
20
Q
Gluteus Minimus innervation
A
Superior gluteal nerve
21
Q
Tensor Fascia Latae (TFL) origin
A
ASIS (anterior superior iliac spine)
22
Q
Tensor Fascia Latae (TFL) insertion
A
iliotibial tract
23
Q
Tensor Fascia Latae (TFL) action
A
abducts and internally rotates thigh, stabilizes hip and knee joints
24
Q
Tensor Fascia Latae (TFL) innervation
A
superior gluteal nerve
25
Obturator Externus action
lateral rotation of thigh
26
Obturator Externus innervation
obturator nerve
27
Obturator Internus action
lateral rotation of thigh
28
Obturator Internus innervation
spinal nerves S1-3
29
Superior Gemellus action
lateral rotation, adduction, extension of hip joint
30
Superior Gemellus innervation
spinal nerves L5, S1
31
Inferior Gemellus action
lateral rotation, adduction, extension of hip joint
32
Inferior Gemellus innervation
spinal nerves L5, S1
33
Quadratus Femoris action
lateral rotation, adduction of hip joint
34
Quadratus Femoris innervation
spinal nerves L5, S1
35
Piriformis action
lateral rotation, adduction, extension of hip joint
36
Piriformis innervation
spinal nerves L5-S2
37
Biceps Femoris origin
Long head - ischial tuberosity, short head - linea aspera of femur, lateral surface
38
Biceps Femoris insertion
head of the fibula, lateral surface
39
Biceps Femoris action
knee flexion, hip extension
40
Biceps Femoris innervation
Long head - tibial nerve, Short head - common fibular nerve
41
Semitendinosus origin
ischial tuberosity
42
Semitendinosus insertion
medial surface of tibia
43
Semitendinosus action
knee flexion
44
Semitendinosus innervation
tibial nerve
45
Semimembranosus origin
ischial tuberosity
46
Semimembranosus insertion
medial condyle of tibia
47
Semimembranosus action
knee flexion
48
Semimembranosus innervation
tibial nerve
49
Rectus Femoris origin
AIIS (anterior inferior iliac spine)
50
Rectus Femoris insertion
common tendon of the quadriceps to tibial tuberosity
51
Rectus Femoris action
knee extension, hip flexion
52
Rectus Femoris innervation
femoral nerve
53
Vastus Medialis origin
intertrochanteric line of femur
54
Vastus Medialis insertion
patella via quadriceps tendon; tibial tuberosity
55
Vastus Medialis action
knee extension
56
Vastus Medialis innervation
femoral nerve
57
Vastus Lateralis origin
greater trochanter of femur
58
Vastus Lateralis insertion
patella via quadriceps tendon; tibial tuberosity
59
Vastus Lateralis action
knee extension
60
Vastus Lateralis innervation
femoral nerve
61
Vastus Intermedius origin
anterior/lateral surfaces of femur
62
Vastus Intermedius insertion
common tendon of the quadriceps to tibial tuberosity
63
Vastus Intermedius action
knee extension
64
Vastus Intermedius innervation
femoral nerve
65
Adductor Longus origin
front of the pubis
66
Adductor Longus insertion
linea aspera
67
Adductor Longus action
adducts, medially rotates thigh
68
Adductor Longus innervation
obturator nerve
69
Adductor Brevis origin
superior and inferior rami of the pubis
70
Adductor Brevis insertion
medial shaft femur, into the upper linea aspera
71
Adductor Brevis action
adducts, medially rotates thigh
72
Adductor Brevis innervation
obturator nerve
73
Adductor Magnus origin
inferior ramus of pubis
74
Adductor Magnus insertion
adductor tubercle, medial condyle of the femur, linea aspera
75
Adductor Magnus action
adducts, medially rotates thigh
76
Adductor Magnus innervation
obturator nerve
77
Gracilis origin
lower half of pubic symphysis
78
Gracilis insertion
superior shaft of tibia
79
Gracilis action
adductor of the thigh, flexes knee
80
Gracilis innervation
obturator nerve
81
Pectineus origin
pectineal line
82
Pectineus insertion
posterior surface of the femur
83
Pectineus action
adducts thigh
84
Pectineus innervation
femoral nerve
85
Sartorius origin
ASIS (anterior superior iliac spine)
86
Sartorius insertion
superior shaft of tibia
87
Sartorius action
Hip - flexion, abduction, external rotation; Knee - flexion, internal rotation
88
Sartorius innervation
femoral nerve
89
Tibialis Anterior origin
lateral condyle of tibia
90
Tibialis Anterior insertion
base of metatarsal 1, medial cuneiform
91
Tibialis Anterior action
dorsiflexion, inversion of foot
92
Tibialis Anterior innervation
deep peroneal nerve
93
Extensor Digitorum Longus origin
lateral condyle of tibia
94
Extensor Digitorum Longus insertion
distal phalanges of digits 2-5
95
Extensor Digitorum Longus action
extends digits 2-5, dorsiflexion of foot
96
Extensor Digitorum Longus innervation
deep peroneal nerve
97
Extensor Hallucis Longus origin
anterior surface of fibula
98
Extensor Hallucis Longus insertion
dorsal surface of digit 1 (great toe)
99
Extensor Hallucis Longus action
extension of digit 1, dorsiflexion of foot
100
Extensor Hallucis Longus innervation
deep peroneal nerve
101
Peroneus Brevis origin
lateral, distal fibula
102
Peroneus Brevis insertion
lateral side of 5th metatarsal
103
Peroneus Brevis action
plantarflex and evert foot (pronate)
104
Peroneus Brevis innervation
superficial peroneal nerve
105
Peroneus Longus origin
posterior surface of tibia, superior fibula
106
Peroneus Longus insertion
base of metatarsal 1
107
Peroneus Longus action
plantarflex and evert foot (pronate)
108
Peroneus Longus innervation
superficial peroneal nerve
109
Gastrocnemius origin
medial and lateral heads: posterior surfaces of medial and lateral femoral condyles
110
Gastrocnemius insertion
posterior surface of calcaneus via Achilles tendon
111
Gastrocnemius action
plantarflexion of foot, knee flexion
112
Gastrocnemius innervation
tibial nerve
113
Soleus origin
posterior surface of fibula, medial region of posterior tibia
114
soleus insertion
posterior surface of calcaneus via Achilles tendon
115
soleus action
plantarflexion of foot
116
soleus innervation
tibial nerve
117
Tibialis Posterior origin
posterior surface of tibia, interosseous membrane, medial surface of fibula
118
Tibialis Posterior insertion
navicular bone, cuneiforms (3), cuboid, and metatarsals 2-4
119
Tibialis Posterior action
plantarflexion, inversion and adduction of foot
120
Tibialis Posterior innervation
tibial nerve
121
Flexor Digitorum Longus origin
posterior surface of tibia
122
Flexor Digitorum Longus insertion
inferior surface of distal phalanges 2-5
123
Flexor Digitorum Longus action
flexion of digits 2-5; inversion and plantarflexion of foot
124
Flexor Digitorum Longus innervation
deep peroneal nerve
125
Flexor Hallusic Longus origin
posterior fibula
126
Flexor Hallusic Longus insertion
inferior surface of distal phalanx of digit 1 (great toe)
127
Flexor Hallusic Longus action
flexion of digit 1, inversion and plantarflexion of foot
128
Flexor Hallusic Longus innervation
tibial nerve (deep peroneal branch)
