lower leg - insertion, action, innervation Flashcards
(100 cards)
1
Q
Tibialis anterior - proximal origin
A
Superior lateral tibia, interosseus membrane
2
Q
Tibialis anterior - distal insertion
A
medial cuneiform, 1st metatarsal
3
Q
Tibialis anterior - action
A
Dorsiflexion
4
Q
Tibialis anterior - innervation
A
Deep fibular nerve
(L4, L5)
5
Q
Extensor hallucis longus - proximal origin
A
Mid. Anterior Fibula, interosseus membrane
6
Q
Extensor hallucis longus - distal insertion
A
distal phalanx of hallucis (dorsal)
7
Q
Extensor hallucis longus - action
A
- Dorsiflexion
- Toe extension
8
Q
Extensor hallucis longus - innervation
A
Deep fibular nerve
(L5, S1)
9
Q
Extensor digitorum longus - proximal origin
A
Lateral tibia, anterior Fibula, interosseus membrane
10
Q
Extensor digitorum longus - distal insertion
A
middle and distal phalanges of lateral digits
11
Q
Extensor digitorum longus - action
A
- Dorsiflexion
- Toe extension
12
Q
Extensor digitorum longus - innervation
A
Deep fibular nerve
(L5, S1)
13
Q
Fibularis tertius - proximal origin
A
Inferior Anterior Fibula, interosseus membrane
14
Q
Fibularis tertius - distal insertion
A
base of 5th metatarsal (dorsal)
15
Q
Fibularis tertius - action
A
- Dorsiflexion
- Toe extension
16
Q
Fibularis tertius - innervation
A
Deep fibular nerve
(L5, S1)
17
Q
Fibularis longus - proximal origin
A
Superior Lateral fibula
18
Q
Fibularis longus - distal insertion
A
base 1st metatarsal, medial cuneiform
19
Q
Fibularis longus - action
A
- Foot eversion
- Weak plantarflexion
- supports transverse arch of foot
20
Q
Fibularis longus - innervation
A
Superficial fibular nerve (L5, S1, S2)
21
Q
Fibularis brevis - proximal origin
A
Mid. Lateral fibula
22
Q
Fibularis brevis - distal insertion
A
base of 5th tuberosity (dorsal)
23
Q
Fibularis brevis - action
A
- Foot eversion
- Weak plantarflexion
24
Q
Fibularis brevis - innervation
A
Superficial fibular nerve (L5, S1, S2)
25
Gastrocnemius - proximal origin
LH: lat. condyle of femur
MH: popliteal surface of femur
26
Gastrocnemius - distal insertion
LH: calcaneus (calcaneal tendon)
MH: calcaneus (calcaneal tendon)
27
Gastrocnemius - action
- Plantarflexion when knee extended
- Knee flexion
28
Gastrocnemius - innervation
Tibial nerve (S1, S2)
29
Soleus - proximal origin
Post. head of fibula
30
Soleus - distal insertion
calcaneus (calcaneal tendon)
31
Soleus - action
plantarflexion
32
Soleus - innervation
Tibial nerve (S1, S2)
33
Plantaris - proximal origin
Supracondylar line of femur
34
Plantaris - distal insertion
calcaneus (calcaneal tendon)
35
Plantaris - action
Assists plantarflexion
36
Plantaris - innervation
Tibial nerve (S1, S2)
37
Popliteus - proximal origin
Lateral condyle of femur
38
Popliteus - distal insertion
posterior tibia
39
Popliteus - action
- Flexes knee
- Medial rotation of tibia?
40
Popliteus - innervation
Tibial nerve (L4, L5, S1)
41
Flexor hallucis longus - proximal origin
Posterior fibula
42
Flexor hallucis longus - distal insertion
base of distal phalanx of great toe
43
Flexor hallucis longus - action
- Big toe flexion
- Plantarflexion
- Supports arch of foot
44
Flexor hallucis longus - innervation
Tibial nerve (**S2**, S3)
45
Flexor digitorum longus - proximal origin
Medial Posterior tibia
46
Flexor digitorum longus - distal insertion
base of distal phalanges of lateral digits
47
Flexor digitorum longus - action
- Toe flexion
- Plantarflexion
- Supports arch of foot
48
Flexor digitorum longus - innervation
Tibial nerve (**S2**, S3)
49
Tibialis posterior - proximal origin
Interosseus membrane
50
Tibialis posterior - distal insertion
navicular tuberosity, cuneiforms, cuboid, base of 2nd-4th metatarsals
51
Tibialis posterior - action
- Plantarflexion
- Inversion
- Supports arch of foot
52
Tibialis posterior - innervation
Tibial nerve (L4, L5)
53
Extensor hallucis brevis - proximal origin
Calcaneus
54
Extensor hallucis brevis - distal insertion
proximal phalanx of big toe
55
Extensor hallucis brevis - action
Extend great toe
56
Extensor hallucis brevis - innervation
Deep fibular nerve
| (L5, S1)
57
Extensor digitorum brevis - proximal origin
Calcaneus
58
Extensor digitorum brevis - distal insertion
proximal phalanges 2-4 digits
59
Extensor digitorum brevis - action
Extend lateral digits
60
Extensor digitorum brevis - innervation
Deep fibular nerve
| (L5, S1)
61
Abductor hallucis - proximal origin
Tuberosity of calcaneus
62
Abductor hallucis - distal insertion
base of proximal phalanx
63
Abductor hallucis - action
Abducts and flexes great toe
64
Abductor hallucis - innervation
Medial plantar nerve
(S2, **S3**)
65
Flexor digitorum brevis - proximal origin
Tuberosity of calcaneus
66
Flexor digitorum brevis - distal insertion
middle phalanges of lat. four digits
67
Flexor digitorum brevis - action
Flexes lateral digits
68
Flexor digitorum brevis - innervation
Medial plantar nerve
(S2, **S3**)
69
Abductor digiti minimi - proximal origin
Tuberosity of calcaneus
70
Abductor digiti minimi - distal insertion
base of proximal phalanx of 5th digit
71
Abductor digiti minimi - action
Abducts and flexes 5th digit
72
Abductor digiti minimi - innervation
Lateral plantar nerve
(S2, **S3**)
73
Quadratus Plantae - proximal origin
Medial surface of plantar calcaneus
74
Quadratus Plantae - distal insertion
flexor digitorum longus tendon
75
Quadratus Plantae - action
Assists flexor digitorum longus -\> flex lateral four digits
76
Quadratus Plantae - innervation
Lateral plantar nerve
(S2, **S3**)
77
Lumbricals - proximal origin
Flexor digitorum longus tendon
78
Lumbricals - distal insertion
medial aspect of expansion over lateral four digits
79
Lumbricals - action
Flex proximal phalanges, extend middle and distal phalanges of lateral four digits
80
Lumbricals - innervation
Medial one: medial plantar nerve (S2, **S3**)
Lateral three: lateral plantar nerve (S2, **S3**)
81
Flexor hallucis brevis - proximal origin
Plantar surface of cuboid and cuneiform
82
Flexor hallucis brevis - distal insertion
base of proximal phalanx of 1st digit
83
Flexor hallucis brevis - action
Flexes proximal phalanx of great toe
84
Flexor hallucis brevis - innervation
Medial plantar nerve
(S2, **S3**)
85
Adductor hallucis - proximal origin
OH: base of metatarsals
TH: plantar 3-5 MTPJ
86
Adductor hallucis - distal insertion
OH: base of proximal phalanx of 1st digit
TH: base of proximal phalanx of 1st digit
87
Adductor hallucis - action
Adducts great toe
88
Adductor hallucis - innervation
Deep branch of lateral plantar nerve
(S2, **S3**)
89
Flexor digiti minimi brevis - proximal origin
Base of 5th metatarsal
90
Flexor digiti minimi brevis - distal insertion
base of proximal phalanges of 3-5 digits
91
Flexor digiti minimi brevis - action
Flexes proximal phalanx of 5th digit
92
Flexor digiti minimi brevis - innervation
Superficial branch of lateral planter nerve (S2, **S3**)
93
Plantar interossei - proximal origin
Base/ medial 3-5 metatarsals
94
Plantar interossei - distal insertion
medial sides of base of 3-5 proximal phalanges
95
Plantar interossei - action
Adducts digits 3-5 and flexes MTP joints
| (PAD)
96
Plantar interossei - innervation
Lateral planter nerve
(S2, **S3**)
97
Dorsal interossei - proximal origin
Sides 1-5 metatarsals
98
Dorsal interossei - distal insertion
1st: medial proximal phalanx 2nd digit,
2nd – 4th : lateral 2-4 digits
99
Dorsal interossei - action
Abducts digits (2-4) and flexes MTP joints
| (DAB)
100
Dorsal interossei - innervation
Lateral planter nerve
(S2, **S3**)
