Lower limb muscles Flashcards
(175 cards)
1
Q
Pectineus
Origin
A
Pecten pubis and superior ramus of the pubis
Part of anterior and medial thigh
2
Q
Pectineus
Insertion
A
Pectineal line of the femur
3
Q
Pectineus
Action
A
Adducts and flexes the thigh
4
Q
Pectineus
Innervation
A
Femoral n. and obturator n.
5
Q
Pectineus
Blood supply
A
Medial circumflex femoral artery,
obturator artery
6
Q
Iliopsoas
Origin and Insertion
A
Origin: Iliac fossa and TP and bodies of vertebrae T12–L5 (psoas major)
Insertion: Lesser trochanter of the femur
(Part of anterior thigh)
7
Q
Iliopsoas
Action
A
Flexes the thigh
8
Q
Iliopsoas
Innervation
A
Femoral n.
9
Q
Sartorius
Origin and Insertion
A
Origin: Anterior superior iliac spine
Insertion: Medial surface of the proximal tibia (at pes anserinus)
(Part of anterior thigh)
10
Q
Iliopsoas
Blood supply
A
Iliolumbar artery
11
Q
Sartorius
Action
A
Flexes and laterally rotates the thigh, flexes and medially rotates the leg
12
Q
Sartorius
Innervation
A
Femoral n.
13
Q
Tensor fasciae lata (TFL)
Origin
A
Anterior superior iliac spine
14
Q
Tensor fasciae lata (TFL)
Insertion
A
Iliotibial tract
Part of anterior thigh, gluteal region
15
Q
Sartorius
Blood supply
A
Femoral artery
16
Q
Tensor fasciae lata (TFL)
Innervation
A
Nerve: Superior gluteal n.
17
Q
Rectus femoris
Origin
A
Anterior inferior iliac spine
Part of anterior thigh, part of quadriceps femoris
18
Q
Rectus femoris
Insertion
A
Tibial tuberosity
19
Q
Rectus femoris
Action
A
Flexes the thigh and extends the leg
20
Q
Tensor fasciae lata (TFL)
Blood supply
A
Ascending branch
of lateral circumflex femoral artery
21
Q
Vastus medialis
Origin
A
Medial lip of the linea aspera and intertrochanteric line
Part of anterior thigh, part of quadriceps femoris
22
Q
Vastus medialis
Insertion
A
Tibial tuberosity
23
Q
Vastus medialis
Action
A
Extends the leg
24
Q
Vastus medialis
Innervation
A
Femoral n.
25
Rectus femoris
| Blood supply
Profunda femoris
and lateral circumflex
femoral arteries
26
Vastus lateralis
| Origin and Insertion
Origin: Lateral lip of the linea aspera and greater trochanter
Insertion: Tibial tuberosity
(Part of anterior thigh, part of quadriceps femoris)
27
Vastus lateralis
| Action
Extends the leg
28
Vastus lateralis
| Innervation
Femoral n.
29
Vastus intermedius
| Origin
Anterior and lateral surfaces of the femur
| Part of anterior thigh, part of quadriceps femoris
30
Vastus medialis
| Blood supply
Femoral and
| profunda femoris arteries
31
Vastus intermedius
| Action
Extends the leg
32
Vastus intermedius
| Innervation
Femoral n.
33
Vastus lateralis
| Blood supply
Lateral circumflex
femoral and profunda
femoris arteries
34
Vastus intermedius
| Blood supply
Lateral circumflex
femoral and profunda
femoris arteries
35
Gracilis
| Origin
Body of pubis and inferior pubic ramus
| Part of medial thigh
36
Gracilis
| Insertion
Superior part of medial surface of tibia
| at pes anserinus
37
Gracilis
| Action
Adducts the thigh; flexes and internally rotates the leg
38
Gracilis
| Innervation
Obturator n.
39
Adductor longus
| Origin
Body of pubis inferior to pubic crest
| Part of medial thigh
40
Adductor longus
| Insertion
Middle third of linea aspera
41
Gracilis
| Blood supply
Profunda femoris
artery, medial circumflex
femoral artery
42
Adductor longus
| Innervation
Obturator n.
43
Adductor brevis
| Origin
Body of pubis and inferior pubic ramus
| Part of medial thigh
44
Adductor brevis
| Insertion
Pectineal line and proximal part of linea aspera
45
Adductor brevis
| Action
Adducts the thigh
46
Pectineus
| Blood supply
Medial circumflex femoral artery,
| obturator artery
47
Adductor magnus
| Origin
Ischiopubic ramus and ischial tuberosity
| Part of medial thigh
48
Adductor magnus
| Insertion
Adductor part: Gluteal tuberosity, linea aspera, medial supracondylar line
Hamstring part: adductor tubercle of the femur
49
Adductor magnus
| Action
Adducts and extends the thigh
50
Adductor magnus
| Innervation
Adductor part: Obturator n.
| Hamstring part: Tibial division of the sciatic n.
51
Adductor longus
| Blood supply
Profunda femoris
| and medial circumflex femoral arteries
52
Obturator externus
| Origin and Insertion
Origin: External margins of obturator foramen and obturator membrane
Insertion: Trochanteric fossa of femur
(Part of medial thigh)
53
Obturator externus
| Action
Laterally rotates the thigh
54
Obturator externus
| Innervation
Obturator n.
55
Adductor brevis
| Blood supply
Profunda femoris,
medial circumflex femoral, and
obturator arteries
56
Adductor magnus
| Blood supply
Femoral, profunda
| femoris, and obturator arteries
57
Obturator externus
| Blood supply
Medial circumflex femoral artery,
| obturator artery
58
Gluteus maximus
| Origin
- Ilium posterior to posterior gluteal line
- Dorsal surface of the sacrum and coccyx
- Sacrotuberous ligament
(A Gluteal region muscle)
59
Gluteus maximus
| Insertion
Iliotibial tract and gluteal tuberosity
60
Gluteus maximus
| Action
Extends and laterally rotates the thigh
61
Gluteus maximus
| Innervation
Inferior gluteal n.
62
Gluteus medius
| Origin
External surface of ilium between anterior and posterior gluteal lines and gluteal fascia
(A Gluteal region muscle)
63
Gluteus medius
| Insertion
Lateral surface of greater trochanter of the femur
64
Gluteus medius
| Action
Abducts and medially rotates the thigh
65
Gluteus medius
| Innervation
Superior gluteal n.
66
Gluteus minimus
| Origin
Lateral surface of the ilium between the anterior gluteal and inferior gluteal lines
(A Gluteal region muscle)
67
Gluteus minimus
| Insertion
Anterior surface of greater trochanter of the femur
68
Gluteus minimus
| Action
Abducts and medially rotates the thigh
69
Gluteus minimus
| Innervation
Superior gluteal n.
70
Piriformis
| Origin
Anterior surface of the sacrum
| A Gluteal region muscle
71
Gluteus maximus
| Blood supply
- Inferior gluteal arteries mainly
| - superior gluteal arteries occasionally
72
Piriformis
| Action
Laterally rotates the thigh
73
Piriformis
| Innervation
Anterior rami of S1 and S2
74
Obturator internus
| Origin
Internal margin of the obturator foramen and inner surface of the obturator membrane
(A Gluteal region muscle)
75
Obturator internus
| Insertion
Greater trochanter of the femur
76
Gluteus medius
| Blood supply
Superior gluteal artery
77
Obturator internus
| Innervation
Nerve to obturator internus
78
Superior gemellus
| Origin
Ischial spine
| A Gluteal region muscle
79
Superior gemellus
| Insertion
Greater trochanter of the femur and obturator internus tendon
80
Superior gemellus
| Action
Laterally rotates the thigh
81
Gluteus minimus
| Blood supply
Main trunk and deep
| branch of superior gluteal artery
82
Inferior gemellus
| Origin
Ischial tuberosity
| A Gluteal region muscle
83
Inferior gemellus
| Insertion
Greater trochanter of the femur (lateral) and obturator internus tendon
84
Inferior gemellus
| Action
Laterally rotates the thigh
85
Inferior gemellus
| Innervation
Nerve to quadratus femoris
86
Piriformis
| Blood supply
Superior and inferior gluteal arteries,
| internal pudendal artery
87
Quadratus femoris
| Origin and Insertion
Origin: Ischial tuberosity
Insertion: Quadrate tubercle
(A gluteal region muscle)
88
Quadratus femoris
| Action
Laterally rotates the thigh
89
Quadratus femoris
| Innervation
Nerve to quadratus femoris
90
Obturator internus
| Blood supply
Internal pudendal and obturator
| arteries
91
Superior gemellus
| Blood supply
Inferior gluteal and
| internal pudendal arteries
92
Inferior gemellus
| Blood supply
Medial circumflex femoral artery
93
Quadratus femoris
| Blood supply
Medial circumflex femoral artery
94
Biceps femoris
| Origin
Ischial tuberosity (long head)
Lateral lip of the linea aspera of femur (short head)
(Posterior thigh muscle)
95
Biceps femoris
| Insertion
Head of the fibula
96
Biceps femoris
| Action
Extends the thigh (only long head) and flexes the leg
97
Biceps femoris
| Innervation
Long head: Tibial division of the sciatic n.
Short head: common fibular division of the sciatic n.
98
Biceps femoris
| Blood supply
Perforating branches of profunda femoris, inferior gluteal, and medial
circumflex femoral arteries
99
Semitendinosus
| Origin
Ischial tuberosity
| Posterior thigh muscle
100
Semitendinosus
| Insertion
Medial surface of the superior part of the tibia
| at pes anserinus, common tendon
101
Semitendinosus
| Innervation
Tibial division of the sciatic n.
102
Semimembranosus
| Origin
Ischial tuberosity
103
Semitendinosus
| Blood supply
Perforating branch of profunda femoris and
| medial circumflex femoral arteries
104
Semimembranosus
| Origin
Ischial tuberosity
| Posterior thigh muscle
105
Semimembranosus
| Innervation
Tibial division of the sciatic n.
106
Popliteus
| Origin
Lateral surface of lateral condyle of femur and lateral meniscus
107
Popliteus
| Insertion
Posterior surface of tibia superior to soleal line
108
Semimembranosus
| Blood supply
Perforating branch of profunda
| femoris and medial circumflex femoral arteries
109
Popliteus
| Origin
Lateral surface of lateral condyle of femur and lateral meniscus
(Posterior thigh, deep posterior leg muscle)
110
Popliteus
| Blood supply
Inferior medial and
| lateral genicular arteries
111
Gastrocnemius
| Origin
Superior to the lateral and medial femoral condyles
| Superficial muscle of posterior leg
112
Gastrocnemius
| Insertion
Posterior surface of calcaneus via calcaneal tendon
113
Gastrocnemius
| Action
Plantar flexes the foot and flexes the knee
114
Gastrocnemius
| Innervation
Tibial n.
115
Soleus
| Origin
Soleal line of the tibia and head of the fibula
| Superficial muscle of posterior leg
116
Soleus
| Insertion
Posterior surface of calcaneus via calcaneal tendon
117
Soleus
| Action
Plantar flexes the foot
118
Gastrocnemius
| Blood supply
Popliteal and posterior tibial
| arteries
119
Plantaris
| Origin
Lateral supracondylar line of the femur
120
Plantaris
| Insertion
Posterior surface of calcaneus via calcaneal tendon
121
Plantaris
| Action
Plantar flexes the foot and flexes the knee
122
Plantaris
| Innervation
Tibial n.
123
Soleus
| Blood supply
Popliteal, posterior tibial, and fibular
| arteries
124
Tibialis posterior
| Insertion
Navicular, cuneiform, cuboid, and bases of metatarsals 2–4
125
Tibialis posterior
| Action
Inverts and plantarflexes the foot
126
Tibialis posterior
| Innervation
Tibial n.
127
Flexor digitorum longus
| Origin
Medial part of posterior surface of tibia inferior to the soleal line
128
Plantaris
| Blood supply
Popliteal artery
129
Flexor digitorum longus
| Action
Flexes toes 2–5 and plantarflexes the foot
130
Flexor digitorum longus
| Innervation
Tibial n.
131
Flexor hallucis longus
| Origin
Inferior two-thirds of the fibula and interosseous membrane
132
Flexor hallucis longus
| Insertion
Base of the distal phalanx of the great toe
133
Tibialis posterior
| Blood supply
Fibular artery
134
Flexor hallucis longus
| Innervation
Tibial n.
135
Fibularis longus
| Origin
Head and superior two-thirds of lateral surface of fibula
| Lateral leg muscle
136
Fibularis longus
| Insertion
Base of first metatarsal and medial cuneiform
137
Fibularis longus
| Action
Evert and plantarflex the foot
138
Flexor digitorum longus
| Blood supply
Posterior tibial artery
139
Fibularis brevis
| Origin
Inferior two-thirds of lateral surface of fibula
| lateral leg muscle
140
Fibularis brevis
| Insertion
Tuberosity of the fifth metatarsal bone
141
Fibularis brevis
| Action
Evert and plantarflex the foot
142
Fibularis brevis
| Innervation
Superficial fibular n.
143
Flexor hallucis longus
| Blood supply
Fibular artery
144
Tibialis anterior
| Insertion
Base of first metatarsal and medial and inferior surfaces of medial cuneiform
145
Tibialis anterior
| Action
Dorsiflexes and inverts the foot
146
Tibialis anterior
| Innervation
Deep fibular n.
147
Extensor hallucis longus
| Origin
Middle part of anterior surface of fibula and interosseous membrane
(anterior leg muscle)
148
Fibularis longus
| Blood supply
Anterior tibial and fibular arteries
149
Extensor hallucis longus
| Action
Extends great toe and dorsiflexes foot
150
Extensor hallucis longus
| Innervation
Deep fibular n.
151
Extensor digitorum longus
| Origin
Lateral condyle of tibia and superior three-fourths of anterior surface of interosseous membrane
152
Extensor digitorum longus
| Insertion
Extensor expansion to distal phalanges of lateral four digits
153
Fibularis brevis
| Blood supply
Anterior tibial and fibular arteries
154
Extensor digitorum longus
| Innervation
Deep fibular n.
155
Fibularis tertius
| Origin
Inferior third of anterior surface of fibula and interosseous membrane
156
Fibularis tertius
| Insertion
Dorsum of base of fifth metatarsal
157
Fibularis tertius
| Action
Dorsiflexes and everts foot
158
Tibialis anterior
| Blood supply
Anterior tibial artery
159
Extensor hallucis longus
| Blood supply
Anterior tibial artery
160
Extensor digitorum longus
| Blood supply
Anterior tibial artery
161
Fibularis tertius
| Blood supply
Anterior tibial artery
162
Extensor digitorum brevis
| Origin
Calcaneus, floor of the tarsal sinus
| dorsal foot muscle
163
Extensor digitorum brevis
| Insertion
Extensor expansions of digits 2–5
164
Extensor digitorum brevis
| Action
Extends digits
165
Extensor digitorum brevis
| Innervation
Deep fibular n.
166
Extensor hallucis brevis
| Origin
Calcaneus, floor of the tarsal sinus
167
Extensor hallucis brevis
| Insertion
Extensor expansion of digit 1
168
Extensor hallucis brevis
| Action
Extends great toe
169
Extensor hallucis brevis
| Innervation
Deep fibular n.
170
Extensor digitorum brevis
| Blood supply
Dorsalis pedis, lateral tarsal, arcuate, and
| fibular arteries
171
Extensor hallucis brevis
| Blood supply
Dorsalis pedis, lateral tarsal,
| arcuate, and fibular arteries
176
Obturator internus
| Origin
Internal margin of the obturator foramen and inner surface of the obturator membrane
177
Obturator internus
| Insertion
Greater trochanter of the femur
178
Obturator internus
| Action
Laterally rotates the thigh
179
Obturator internus
| Innervation
Nerve to obturator internus
