Anatomy Test 2 Lower Limb Muscles Flashcards
1
Q
abductor digiti minimi (foot) origin
A
medial and lateral sides of the tuberosity of the calcaneus
2
Q
abductor digiti minimi (foot) insertion
A
lateral side of the base of the proximal phalanx of the 5th digit
3
Q
abductor digiti minimi (foot) action
A
abducts the 5th toe; flexes the metatarsophalageal joint
4
Q
abductor digiti minimi (foot) innervation
A
lateral plantar nerve
5
Q
abductor digiti minimi (foot) blood supply
A
lateral plantar a.
6
Q
abductor hallucis origin
A
medial side of the tuberosity of calcaneus
7
Q
abductor hallucis insertion
A
medial side of the base of the proximal phalanx of the great toe (hallux)
8
Q
abductor hallucis action
A
abducts the great toe; flexes the metatarsophalageal joint
9
Q
abductor hallucis innervation
A
medial plantar nerve
10
Q
abductor hallucis blood supply
A
medial plantar a.
11
Q
adductor brevis origin
A
inferior pubic ramus
12
Q
adductor brevis insertion
A
pectineal line and linea aspera (deep to the pectineus and adductor longus mm.)
13
Q
adductor brevis action
A
adducts, flexes, and medially rotates the femur
14
Q
adductor brevis innervation
A
anterior division of the obturator nerve
15
Q
adductor brevis blood supply
A
obturator a., deep femoral a.
16
Q
adductor hallucis origin
A
oblique head: bases of metatarsals 2-4; transverse head: heads of metatarsals 3-5
17
Q
adductor hallucis insertion
A
lateral side of base of the proximal phalanx of the great toe
18
Q
adductor hallucis action
A
adducts the great toe (moves it toward midline of the foot; i.e.toward the 2nd digit)
19
Q
adductor hallucis innervation
A
deep branch of the lateral plantar nerve
20
Q
adductor hallucis blood supply
A
plantar arterial arch
21
Q
adductor longus origin
A
medial portion of the superior pubic ramus
22
Q
adductor longus insertion
A
linea aspera of the femur
23
Q
adductor longus action
A
adducts, flexes, and medially rotates the femur
24
Q
adductor longus innervation
A
anterior division of the obturator nerve
25
adductor longus blood supply
obturator a., deep femoral a.
26
adductor magnus origin
ischiopubic ramus and ischial tuberosity
27
adductor magnus insertion
linea aspera of the femur; the ischiocondylar part inserts on the adductor tubercle of the femur
28
adductor magnus action
adducts, flexes, and medially rotates the femur; extends the femur (ischiocondylar part)
29
adductor magnus innervation
posterior division of the obturator nerve; tibial nerve (ischiocondylar part)
30
adductor magnus blood supply
obturator a., deep femoral a., medial femoral circumflex a.
31
adductor minimus origin
lower portion of the inferior pubic ramus
32
adductor minimus insertion
gluteal ridge and upper part of the linea aspera of the femur
33
adductor minimus action
adducts and laterally rotates the femur
34
adductor minimus innervation
posterior division of the obturator nerve
35
adductor minimus blood supply
obturator a., medial femoral circumflex a., deep femoral a.
36
articularis genu origin
anterior surface of the femur above the patellar surface
37
articularis genu insertion
articular capsule of the knee
38
articularis genu action
elevates the articular capsule of the knee joint
39
articularis genu innervation
femoral nerve
40
articularis genu blood supply
descending genicular a.
41
biceps femoris origin
long head: ischial tuberosity; short head: lateral lip of the linea aspera
42
biceps femoris insertion
head of fibula and lateral condyle of the tibia
43
biceps femoris action
extends the thigh, flexes the leg
44
biceps femoris innervation
long head: tibial nerve; short head: common fibular (peroneal) nerve
45
biceps femoris blood supply
perforating branches of the deep femoral a.
46
dorsal interosseous (foot) origin
shafts of adjacent metatarsal bones
47
dorsal interosseous (foot) insertion
bases of the proximal phalanges for digit 2 (both sides) and; digits 3,4 (lateral side)
48
dorsal interosseous (foot) action
abduct digits 2-4 (move these digits away from midline as defined by a plane passing through the 2nd digit); flex the metatarsophalangeal joints and extend the interphalangeal joints of those digits
49
dorsal interosseous (foot) innervation
deep branch of the lateral plantar nerve
50
dorsal interosseous (foot) blood supply
dorsal metatarsal aa.
51
extensor digitorum brevis origin
superolateral surface of the calcaneus
52
extensor digitorum brevis insertion
extensor expansion of toes 1-4
53
extensor digitorum brevis action
extends toes 1-4
54
extensor digitorum brevis innervation
deep fibular (peroneal) nerve
55
extensor digitorum brevis blood supply
dorsalis pedis a.
56
extensor digitorum brevis origin
lateral condyle of the tibia, anterior surface of the fibula, lateral portion of the interosseous membrane
57
extensor digitorum brevis insertion
dorsum of the lateral 4 toes via extensor expansions (central slip inserts on base of middle phalanx, lateral slips on base of distal phalanx)
58
extensor digitorum brevis action
extends the metatarsophalangeal, proximal interphalangeal and distal interphalangeal joints of the lateral 4 toes
59
extensor digitorum brevis innervation
deep fibular (peroneal) nerve
60
extensor digitorum brevis blood supply
anterior tibial a.
61
extensor hallucis brevis origin
superolateral surface of the calcaneus
62
extensor hallucis brevis insertion
dorsum of base of proximal phalanx of the great toe
63
extensor hallucis brevis action
extends the great toe
64
extensor hallucis brevis innervation
deep fibular (peroneal) nerve
65
extensor hallucis brevis blood supply
dorsalis pedis a.
66
extensor hallucis longus origin
middle half of the anterior surface of the fibula and the interosseous membrane
67
extensor hallucis longus insertion
base of the distal phalanx of the great toe
68
extensor hallucis longus action
extends the metatarsophalangeal interphalangeal joints of the great toe
69
extensor hallucis longus innervation
deep fibular (peroneal) nerve
70
extensor hallucis longus blood supply
anterior tibial a.
71
fibulas (peroneus) brevis origin
lower one third of the lateral surface of the fibula
72
fibulas (peroneus) brevis insertion
tuberosity of the base of the 5th metatarsal
73
fibulas (peroneus) brevis action
extends (plantar flexes) and everts the foot
74
fibulas (peroneus) brevis innervation
superficial fibular (peroneal) nerve
75
fibulas (peroneus) brevis blood supply
fibular (peroneal) a.
76
fibularis (peroneus) longus origin
upper two/thirds of the lateral surface of the fibula
77
fibularis (peroneus) longus insertion
after crossing the plantar surface of the foot deep to the intrinsic muscles, it inserts on the medial cuneiform and the base of the 1st metatarsal bone
78
fibularis (peroneus) longus action
extends (plantar flexes) and everts the foot
79
fibularis (peroneus) longus innervation
superficial fibular (peroneal) nerve
80
fibularis (peroneus) longus blood supply
fibular (peroneal) a.
81
fibularis (peroneus) tertius origin
distal part of the anterior surface of the fibula
82
fibularis (peroneus) tertius insertion
dorsum of the shaft of the 5th metatarsal bone
83
fibularis (peroneus) tertius action
everts the foot
84
fibularis (peroneus) tertius innervation
deep fibular (peroneal) nerve
85
fibularis (peroneus) tertius blood supply
anterior tibial a.
86
flexor digiti minimi brevis (foot) origin
base of 5th metatarsal bone
87
flexor digiti minimi brevis (foot) insertion
lateral side of base of proximal phalanx of 5th digit
88
flexor digiti minimi brevis (foot) action
flexes the metatarsophalangeal joint of the 5th digit
89
flexor digiti minimi brevis (foot) innervation
lateral plantar nerve
90
flexor digiti minimi brevis (foot) blood supply
lateral plantar a.
91
flexor digitorum brevis origin
tuberosity of the calcaneus, plantar aponeurosis, intermuscular septae
92
flexor digitorum brevis insertion
base of the middle phalanx of digits 2-5 after splitting to allow passage of the flexor digitorum longus tendons
93
flexor digitorum brevis action
flexes the metatarsophalangeal and proximal interphalangeal joints of digits 2-5
94
flexor digitorum brevis innervation
medial plantar nerve
95
flexor digitorum brevis blood supply
medial and lateral plantar aa.
96
flexor digitorum longus origin
middle half of the posterior surface of the tibia
97
flexor digitorum longus insertion
bases of the distal phalanges of digits 2-5
98
flexor digitorum longus action
flexes the metatarsophalangeal, proximal interphalangeal and distal interphalangeal joints of digits 2-5; plantar flexes the foot
99
flexor digitorum longus innervation
tibial nerve
100
flexor digitorum longus blood supply
tibial a.
101
flexor hallucis brevis origin
cuboid, lateral cuneiform, medial side of the first metatarsal
102
flexor hallucis brevis insertion
medial belly: medial side of proximal phalanx of the great toe; lateral belly: lateral side of the proximal phalanx of the great toe
103
flexor hallucis brevis action
flexes the metatarsophalangeal joint of the great toe
104
flexor hallucis brevis innervation
medial plantar nerve (lateral belly occasionally receives innervation from the lateral plantar nerve)
105
flexor hallucis brevis blood supply
medial plantar a.
106
flexor hallucis longus origin
lower 2/3 of the posterior surface of the fibula
107
flexor hallucis longus insertion
base of the distal phalanx of the great toe
108
flexor hallucis longus action
flexes the metatarsophalangeal and proximal interphalangeal joints of the great toe; plantar flexes the foot
109
flexor hallucis longus innervation
tibial nerve
110
flexor hallucis longus blood supply
fibular (peroneal) a. and tibial a.
111
gastrocnemius origin
femur; medial head: above the medial femoral condyle; lateral head: above the lateral femoral condyle
112
gastrocnemius insertion
dorsum of the calcaneus via the calcaneal (Achilles') tendon
113
gastrocnemius action
flexes leg; plantar flexes foot
114
gastrocnemius innervation
tibial nerve
115
gastrocnemius blood supply
sural aa. (from the popliteal a.), posterior tibial a.
116
gemellus, inferior origin
ischial tuberosity
117
gemellus, inferior insertion
obturator internus tendon
118
gemellus, inferior action
laterally rotates the femur
119
gemellus, inferior innervation
nerve to the quadratus femoris m.
120
gemellus, inferior blood supply
inferior gluteal a.
121
gemellus, superior origin
ischial spine
122
gemellus, superior insertion
obturator internus tendon
123
gemellus, superior action
laterally rotates the femur
124
gemellus, superior innervation
nerve to the obturator internus m.
125
gemellus, superior blood supply
inferior gluteal a.
126
gluteus maximus origin
posterior gluteal line, posterior surface of sacrum and coccyx, sacrotuberous ligament
127
gluteus maximus insertion
upper fibers: iliotibial tract; lowermost fibers: gluteal tuberosity of the femur
128
gluteus maximus action
extends the thigh; laterally rotates the femur
129
gluteus maximus innervation
inferior gluteal nerve
130
gluteus maximus blood supply
superior and inferior gluteal aa.
131
gluteus medius origin
external surface of the ilium between the posterior and anterior gluteal lines
132
gluteus medius insertion
greater trochanter of the femur
133
gluteus medius action
abducts the femur; medially rotates the thigh
134
gluteus medius innervation
superior gluteal nerve
135
gluteus medius blood supply
superior gluteal a.
136
gluteus minimus origin
external surface of the ilium between the anterior and inferior gluteal lines
137
gluteus minimus insertion
greater trochanter of the femur
138
gluteus minimus action
abducts the femur; medially rotates the thigh
139
gluteus minimus innervation
superior gluteal nerve
140
gluteus minimus blood supply
superior gluteal a.
141
gracilis origin
pubic symphysis and the inferior pubic ramus
142
gracilis insertion
medial surface of the tibia (via pes anserinus)
143
gracilis action
adducts the thigh, flexes and medially rotates the thigh, flexes the leg
144
gracilis innervation
anterior division of the obturator nerve
145
gracilis blood supply
obturator a.
146
iliacus origin
iliac fossa and iliac crest; ala of sacrum
147
iliacus insertion
lesser trochanter of the femur
148
iliacus action
flexes the thigh; if the thigh is fixed it flexes the pelvis on the thigh
149
iliacus innervation
femoral nerve
150
iliacus blood supply
iliolumbar a.
151
iliopsoas origin
iliac fossa; bodies and transverse processes of lumbar vertebrae
152
iliopsoas insertion
lesser trochanter of the femur
