Muscles OIIA Flashcards
(168 cards)
1
Q
iliopsoas
insertion
A
lesser trochanter of femur
2
Q
iliopsoas
innervation
A
Psoas: db (direct branches) from lumbar plexus
L2-L4
Iliacus: femoral n.
L2-L4
3
Q
iliopsoas
action
A
Hip: flexion, external rotation
Lumbar spine: unilateral contraction does ipsilateral flexion and
bilateral contraction raises trunk from supine position
4
Q
gluteus maximus
origin
A
sacrum
ilium
thoracolumbar fascia
sacrotuberous ligament
5
Q
gluteus maximus
insertion
A
ischial tuberosity
IT band
6
Q
gluteus maximus
innervation
A
inferior gluteal n.
L5-S2
7
Q
gluteus maximus
action
A
Hip external rotation, extension, abduction, adduction
8
Q
gluteus medius
origin
A
ilium b/w anterior and posterior gluteal lines
9
Q
gluteus medius
insertion
A
greater trochanter of femur- lateral surface
10
Q
gluteus medius
innervation
A
superior gluteal n.
L4-S1
11
Q
gluteus medius
action
A
Hip flexion,extension, internal and external rotation, abduction
stabilizes the pelvis
12
Q
gluteus minimus
origin
A
ilium b/w anterior and inferior gluteal lines
13
Q
iliopsoas
origin
A
Psoas major:
T12-L4 and IV disks,
L1-L5 vertebrae- transverse processes
Iliacus: iliac fossa
14
Q
gluteus minimus
insertion
A
greater trochanter of femur- anterolateral surface
15
Q
gluteus minimus
innervation
A
superior gluteal n.
L4-S1
16
Q
gluteus minimus
action
A
Hip abduction, flexion, extension, internal and external rotation
stabilizes pelvis
17
Q
tensor fascia lata
origin
A
ASIS
18
Q
tensor fascia lata
insertion
A
IT band
19
Q
tensor fascia lata
innervation
A
superior gluteal n.
L4-S1
20
Q
tensor fascia lata
action
A
Hip abduction, flexion, internal rotation
tenses fascia lata
21
Q
piriformis
origin
A
pelvic surface of sacrum
22
Q
piriformis
insertion
A
apex of greater trochanter of femur
23
Q
piriformis
innervation
A
db from sacral plexus
S1-S2
24
Q
piriformis
action
A
hip external rotation, abduction, extension
25
obturator internus
| origin
inner obturator membrane and bony boundaries
26
obturator internus
| insertion
medial surface of greater trochanter on femur
27
obturator internus and superior gemelli
| innervation
n. to obturator internus
| L5, S1
28
obturator internus
| action
hip external rotation, extension, adduction
29
gemelli (superior and inferior)
| origin
superior: ischial spine
inferior: ischial tuberosity
30
gemelli
| insertion
jointly w/obturator internus tendon on medial surface of greater trochanter of femur
31
gemelli
| action
hip external rotation, extension, adduction
32
quadratus femoris
| origin
lateral border of ischial tuberosity
33
quadratus femoris
| insertion
intertrochanteric crest
34
quadratus femoris and inferior gemelli
| innervation
N. to quadratus femoris
| L5, S1
35
quadratus femoris
| action
hip external rotation, adduction
36
pectineus
| origin
pecten pubis
37
pectineus
| insertion
pectineal line
| proximal linea aspera
38
pectineus
| innervation
femoral n.
obturator n.
L2, L3
39
pectineus
| action
hip adduction, external rotation, slight flexion
40
adductor longus
| origin
superior pubic ramus
| anterior pubic symphysis
41
adductor longus
| insertion
middle 1/3 of linea aspera
42
adductor longus
| innervation
obturator n.
| L2-L4
43
adductor longus
| action
hip adduction
flexion- up to 70 degrees
extension- past 80 degrees of flexion
44
adductor brevis
| origin
inferior pubic ramus
45
adductor brevis
| insertion
superior 1/3 of linea aspera
46
adductor brevis
| innervation
obturator n.
| L2, L3
47
adductor brevis
| action
hip adduction
flexion- up to 70 degrees
extension- past 80 degrees of flexion
48
gracilis
| origin
inferior pubic ramus, below pubic symphysis
49
gracilis
| insertion
pes anserinus- medial to tibial tuberosity
50
gracilis
| innervation
obturator n.
| L2, L3
51
gracilis
| action
hip adduction, flexion
| knee flexion, internal rotation
52
obturator externus
| origin
outer obturator membrane and bony boundaries
53
obturator externus
| insertion
trochanteric fossa
54
obturator externus
| innervation
obturator n.
| L3, L4
55
obturator externus
| action
hip adduction, external rotation
56
adductor magnus
| origin
inferior pubic ramus
ischial ramus
ischial tuberosity
57
adductor magnus
| insertion
deep: medial lip of linea aspera
superficial: adductor tubercle
58
adductor magnus
| innervation
deep: obturator n.
L2-L4
superficial: tibial n.
L4
59
adductor magnus
| action
hip adduction, extension, slight flexion
60
sartorius
| origin
ASIS
61
sartorius
| insertion
pes anserinus- medial to tibial tuberosity
62
sartorius
| innervation
femoral n.
| L2, L3
63
sartorius
| action
hip flexion, abduction, external rotation
| knee flexion. internal rotation
64
rectus femoris
| origin
AIIS
| acetabular roof of hip joint
65
ALL quadriceps femoris muscles
insertion
(rectus femoris, vastus: lateralis, medialis, intermedius)
tibial tuberosity via patellar ligament
66
ALL quadriceps femoris muscles
innervation
(rectus femoris, vastus: medialis, lateralis, intermedius)
femoral n.
| L2-L4
67
rectus femoris
| action
hip flexion
| knee extension
68
ALL vastus muscles
action
(vastus: medialis, intermedius, lateralis)
knee extension
69
vastus medialis
| origin
medial lip of linea aspera
| distal intertrochanteric line
70
vastus lateralis
| origin
lateral lip of linea aspera
| lateral surface of greater trochanter
71
vastus intermedius
| origin
anterior side of femoral shaft
72
biceps femoris
| origin
long head: ischial tuberosity
| short head: lateral lip of linea aspera
73
biceps femoris
| insertion
head of fibula
74
biceps femoris
| innervation
long: tibial n.
L5-S2
short: common fibular n.
L5-S2
75
biceps femoris
| action
Long: hip extension.
Knee flexion and external rotation.
Short: knee flexion, external rotation
76
semimembranosus
| origin
ischial tuberosity
77
semimembranosus
| insertion
posterior surface medial tibial condyle
oblique popliteal ligament
popliteus fascia
78
semimembranosus and semitendinosus
| innervation
tibial n.
| L5-S2
79
semimembranosus and semitendinosus
| action
hip extension
| knee flexion and internal rotation
80
semitendinosus
| origin
ischial tuberosity
| sacrotuberous ligament
81
semitendinosus
| insertion
pes anserinus- medial to tibial tuberosity
82
fibularis longus
| origin
fibular head and proximal 2/3 of lateral surface
83
fibularis longus
| insertion
```
medial cuneiform (plantar side)
1st mc base
```
84
fibularis longus and fibularis brevis
| innervation
superficial fibular n.
| L5, S1
85
fibularis longus
| action
Talocrural joint: plantar flexion,
Subtalar joint: eversion,
Supports transverse arch of foot
86
fibularis brevis
| origin
distal 1/2 of lateral surface of fibula
| intermuscular septa
87
fibularis brevis
| insertion
tuberosity of 5th mt base
88
fibularis brevis
| action
Talocrural joint: plantar flexion,
| Subtalar joint: eversion
89
gastrocnemius
| origin
medial and lateral epicondyles of femur
90
gastrocnemius, soleus, plantaris
| insertion
calcaneal tuberosity
91
gastrocnemius, soleus, plantaris
| innervation
tibial n.
| S1, S2
92
gastrocnemius, soleus
| action
talocrural joint: plantar flexion
| knee joint flexion
93
soleus
| origin
head and neck of posterior surface of femur
| soleal line of tibia
94
plantaris
| origin
lateral epicondyle of femur
95
plantaris
| action
negligible;
| may prevent compression of posterior leg muscles during knee flexion
96
popliteus
| origin
lateral femoral condyle
| posterior horn of lateral meniscus
97
popliteus
| insertion
posterior tibial surface
98
popliteus
| innervation
tibial n.
| L4-S1
99
popliteus
| action
knee joint: flexion, internal rotation
100
tibialis anterior
| origin
upper 2/3 of lateral surface of tibia
interosseous membrane
highest part of superficial crural fascia
101
tibialis anterior
| insertion
medial and plantar surface of medial cuneiform
| first mt medial base
102
tibialis anterior
| innervation
deep fibular n.
| L4, L5
103
tibialis anterior
| action
talocrural joint: dorsiflexion
| subtalar joint: inversion
104
extensor hallucis longus
| origin
Middle 1/3 of medial surface of fibula,
| Interosseous membrane
105
extensor hallucis longus
| insertion
dorsal aponeurosis
| base of distal phalanx of 1st toe
106
extensor hallucis longus, extensor digitorum longus, fibularis tertius, tibialis anterior
innervation
deep fibular n.
| L4, L5
107
extensor hallucis longus
| action
talocrural joint: dorsiflexion
subtalar joint: eversion and inversion
Extends MTP and IP joints of big toe
108
extensor digitorum longus
| origin
Head and medial surface of fibula,
Lateral condyle of tibia,
Interosseous membrane
109
extensor digitorum longus
| insertion
Dorsal aponeuroses at base of distal phalanges of 2nd to 5th toes
110
extensor digitorum longus
| action
Dorsiflexion of talocrural joint,
eversion at subtalar joint,
Extends MTP and IP joints of 2nd to 5th toes
111
fibularis tertius
| origin
anterior border of distal fibula
112
fibularis tertius
| insertion
5th mt base
113
fibularis tertius
| action
talocrural joint: dorsiflexion
| subtalar joint: eversion
114
tibialis posterior
| origin
interosseous membrane
| adjacent borders of tibia and fibula
115
tibialis posterior
| insertion
navicular tuberosity
all cuneiforms,
base of 2nd to 4th mt
116
tibialis posterior
| innervation
tibial n.
| L4, L5
117
tibialis posterior
| action
tc joint: plantar flexion
st joint: inversion
supports longitudinal and transverse arches
118
flexor digitorum longus
| origin
middle 1/3 of posterior surface of tibia
119
flexor digitorum longus
| insertion
bases of 2nd to 5th phalanges
120
flexor digitorum longus and flexor hallucis longus
| innervation
tibial n.
| L5- S2
121
flexor digitorum longus
| action
tc joint: plantar flexion
| st joint: inversion
122
flexor hallucis longus
| origin
distal 2/3 of posterior surface of fibula
| adjacent interosseous membrane
123
flexor hallucis longus
| insertion
base of 1st distal phalanx
124
flexor hallucis longus
| action
tc joint: plantar flexion
st j: inversion
MTP and IP joints of 1st toe: plantar flexion
supports medial longitudinal arch
125
extensor digitorum brevis and extensor hallucis brevis
| origin
dorsal surface of calcaneus
126
extensor digitorum brevis
| insertion
2nd to 4th toes
| dorsal aponeuroses and bases of middle phalanges
127
extensor digitorum brevis and extensor hallucis brevis
| innervation
deep fibular n.
| L5, S1
128
extensor digitorum brevis
| action
extension of MTP and PIP joints of 2nd to 4th toes
129
extensor hallucis brevis
| insertion
dorsal aponeurosis and pp of 1st toe
130
extensor hallucis brevis
| action
MTP joint extension of 1st toe
131
abductor hallucis
| origin
medial process of calcaneal tuberosity
132
abductor hallucis
| insertion
base of pp of 1st toe via medial sesamoid
133
abductor hallucis
| innervation
medial plantar n.
| S1, S2
134
abductor hallucis
| action
1st MTP joint: flexion, abduction
| supports longitudinal arch
135
flexor digitorum brevis and abductor digiti minimi
| origin
medial tubercle of calcaneal tuberosity
| plantar aponeurosis
136
flexor digitorum brevis
| insertion
sides of middle phalanges of 2nd to 5th toes
137
flexor digitorum brevis
| innervation
medial plantar n.
| S1, S2
138
flexor digitorum brevis
| action
flexes MTP and PIP joints of 2nd to 5th toes
| supports longitudinal arch
139
abductor digiti minimi
| insertion
base of pp of 5th toe
| at tuberosity of 5th mt
140
abductor digiti minimi
| innervation
lateral plantar n.
| S1-S3
141
abductor digiti minimi
| action
flexes MTP joint and does abduction of 5th toe
| supports longitudinal arch
142
qudratus plantae
| origin
medial and plantar borders of calcaneal tuberosity
143
qudratus plantae
| insertion
flexor digitorum longus tendon (lateral border)
144
quadratus plantae
| innervation
lateral plantar n.
| S1-S3
145
quadratus plantae
| action
redirects and augments the pull of flexor digitorum longus
146
lumbricals
| origin
medial border of flexor digitorum longus tendon
147
lumbricals
| insertion
dorsal aponeuroses of 2nd to 5th toes
148
lumbricals
| innervation
1st: medial plantar n.
S2, S3
2nd to 4th: lateral plantar n.
S2, S3
149
lumbricals
| action
2nd to 5th toes: Flexes MTP and extends IP joints
| adducts toward big toe
150
flexor hallucis brevis
| origin
cuboid
lateral cuneiforms
plantar calcaneocuboid lig.
151
flexor hallucis brevis
| insertion
base of pp of 1st toe
152
flexor hallucis brevis
| innervation
medial and lateral plantar nn.
| S1, S2
153
flexor hallucis brevis
| action
flexes first MTP joint
| supports longitudinal arch
154
adductor hallucis
| origin
Oblique: 2nd to 4th mt bases
Transverse: MTPs of 3rd to 5th toes, deep transverse mt lig.
155
adductor hallucis
| insertion
base of 1st pp
156
adductor hallucis
| innervation
lateral plantar n., deep branch
| S2, S3
157
adductor hallucis
| action
Flexes first MTP joint, adducts big toe,
Oblique: supports longitudinal arch,
Transverse: supports transverse arch
158
flexor digiti minimi brevis
| origin
5th mt base
| long plantar lig.
159
flexor digiti minimi brevis
| insertion
5th toe base of pp
160
flexor digiti minimi brevis
| innervation
lateral plantar n., superficial branch
| S2, S3
161
flexor digiti minimi brevis
| action
flexes MTP joint of little toe
162
plantar interossei
| origin
medial borders of 3rd to 5th mt
163
plantar interossei
| insertion
medial base of pp of 3rd to 5th toes
164
plantar interossei and dorsal interossei
| innervation
lateral plantar n.
| S2, S3
165
plantar interossei
| action
3rd to 5th toes: flexes MTP and extends IP joints,
| adducts toward 2nd toe
166
dorsal interossei
| origin
1st to 5th mt (by 2 heads on opposing sides)
167
dorsal interossei
| insertion
1st: 2nd pp medial base
2nd to 4th: 2nd to 4th lateral base pp,
2nd to 4th dorsal aponeuroses of toes
168
dorsal interossei
| action
2nd to 4th toes: flexes MTP and extends IP joints,
| adducts from 2nd toe
