Muscle of the leg Flashcards
(98 cards)
1
Q
Tibialis Anterior m. Origin
A
- Lateral tibial condyle
- Lateral aspect of proximal tibia
- interosseous membrane
2
Q
Tibialis Anterior m. Insertion
A
- Inferomedial aspect medial cuneiform
- Base of 1st metatarsal
3
Q
Tibialis Anterior m. Action
A
- Dorsiflex foot
- Invert foot
4
Q
Tibialis Anterior m. Innervation
A
Deep fibular n.
5
Q
Extensor Hallucis Longus m. Origin
A
- Anterior aspect of fibula
- Interosseous membrane
6
Q
Extensor Hallucis Longus m. Insertion
A
Dorsum of base of 1st distal phalanx
7
Q
Extensor Hallucis Longus m. Action
A
- Extend hallux
- Dorsiflex foot
8
Q
Extensor Hallucis Longus m. Innervation
A
Deep fibular N
9
Q
Extensor Digitorum Longus m. Origin
A
- Lateral tibial condyle
- Medial aspect of fibula
- Interosseous membrane
10
Q
Extensor Digitorum Longus m. Insertion
A
2-5th middle and distal phalanges
11
Q
Extensor Digitorum Longus m. Action
A
- Extend digits 2-5
- Dorsiflex foot
12
Q
Extensor Digitorum Longus m. Innervation
A
Deep fibular n.
13
Q
Fibularis Tertius m. Origin
A
- Anteroinferior aspect of fibula
- interosseous membrane
14
Q
Fibularis Tertius m. Insertion
A
Dorsal aspect of base of 5th metatarsal
15
Q
Fibularis Tertius m. Action
A
- Dorsiflex foot
- Assist in eversion of foot
16
Q
Fibularis Tertius m. Innervation
A
Deep fibular n.
17
Q
Fibularis longus m. Origin
A
Head and superior aspect of fibula
18
Q
Fibularis longus m. Insertion
A
- Base of 1st metatarsal
- medial cuneiform
19
Q
Fibularis longus m. Action
A
- Evert foot
- Assist in plantar flexion
20
Q
Fibularis longus m. Innervation
A
Superficial fibular n.
21
Q
Fibularis Brevis m. Origin
A
Inferolateral aspect of fibula
22
Q
Fibularis Brevis m. Insertion
A
Tuberosity of base of 5th metatarsal
23
Q
Fibularis Brevis m. Action
A
- Evert foot
- Assist in plantar flexion
24
Q
Fibularis Brevis m. Innervation
A
Superficial fibular n.
25
Gastrocnemius m. Origin
Lateral head: lateral aspect of lateral femoral condyle
| Medial head: popliteal surface above medial femoral condyle
26
Gastrocnemius m. Insertion
Posterior calcaneus via calcaneus t.
27
Gastrocnemius m. Action
- Plantarflexion w/ extended knee
- Elevate heel
- Flex leg
28
Gastrocnemius m. Innervation
Tibial n.
29
Soleus m. Origin
- Posterior aspect head and body of fibula
| - Soleal line
30
Soleus m. Insertion
Posterior calcaneus via calcaneus t.
31
Soleus m. Action
Plantar flexion of foot at ankle
32
Soleus m. Innervation
Tibial n.
33
Plantaris m. Origin
Inferior lateral supracondylar line and oblique popliteal t.
34
Plantaris m. Insertion
Posterior calcaneus via calcaneus t.
35
Plantaris m. Action
- Weakly assist in plantar flexion
| - Flexing at knee
36
Plantaris m. Innervation
Tibial n.
37
Popliteus m. Origin
Lateral aspect of femoral condyle and lateral meniscus
38
Popliteus m. Insertion
Posterior aspect of tibia superomedial to the soleal line
39
Popliteus m. Action
1. Weakly flex knee
2. Unlock knee by laterally rotating femur 5 degrees on fixed tibia
3. medially rotate tibia of flexed thigh
40
Popliteus m. Innervation
tibial n.
41
Flexor Hallucis Longus m. Origin
- Posteroinferior fibula
| - Interosseous membrane
42
Flexor Hallucis Longus m. Insertion
Base of 1st distal phalanx
43
Flexor Hallucis Longus m. Action
- Flex hallux
| - Weakly plantar flex foot at ankle
44
Flexor Hallucis Longus m. Innervation
Tibial n.
45
Flexor Digitorum Longus m. Origin
Posteromedial tibia inferior to soleal line
46
Flexor Digitorum Longus m. Insertion
Base of 2-5th distal phalanx
47
Flexor Digitorum Longus m. Action
- Flex digits 2-5
| - Plantarflex foot at ankle
48
Flexor Digitorum Longus m. Innervation
Tibial n.
49
Tibialis Posterior m. Origin
- Posterior fibula
- Tibia inferior to soleal line
- Interosseous membrane
50
Tibialis Posterior m. Insertion
- Tuberosity of navicular, medial, and intermediate cuneiforms
- Base of 3-5th metatarsals
51
Tibialis Posterior m. Action
plantarflexion and inversion
52
Tibialis Posterior m. Innervation
tibial n.
53
Extensor Digitorum brevis m. Origin
- Superolateral aspect of calcaneus
| - Interosseous talocalcaneal l.
54
Extensor Digitorum brevis m. Insertion
lateral aspect extensor digitorum longus t.
55
Extensor Digitorum brevis m. Action
extend digits 2-5
56
Extensor Digitorum brevis m. Innervation
deep fibular n.
57
Extensor Hallucis Brevis m. Origin
-Superolateral aspect of calcaneus
-Interosseous talocalcaneal l.
(common with extensor digitorum m.)
58
Extensor Hallucis Brevis m. Insertion
Dorsal aspect of base of 1st proximal phalanx (toe)
59
Extensor Hallucis Brevis m. Action
extend toe at metatarsophalangeal joint
60
Extensor Hallucis Brevis m. Innervation
deep fibular n.
61
Abductor Hallucis m. Origin
medial tubercle calcaneal tuberosity
62
Abductor Hallucis m. Insertion
medial aspect base 1st proximal phalanx (toe)
63
Abductor Hallucis m. Action
ABduct and flex toe
64
Abductor Hallucis m. Innervation
medial plantar n.
65
Flexor Digitorum Brevis m. Origin
medial tubercle calcaneal tuberosity
66
Flexor Digitorum Brevis m. Insertion
intermediate phalanges 2-5th digit
67
Flexor Digitorum Brevis m. Action
flex digits 2-5
68
Flexor Digitorum Brevis m. Innervation
medial plantar n.
69
Abductor Digiti minimi m. Origin
calcaneal tuberosity
70
Abductor Digiti minimi m. Insertion
lateral aspect oof base 5th proximal phalanx
71
Abductor Digiti minimi m. Action
ABduct and flex 5th digit
72
Abductor Digiti minimi m. Innervation
lateral plantar n.
73
Quadratus Plantae m. Origin
plantar surface of calcaneus
74
Quadratus Plantae m. Insertion
lateral aspect of flexor digitorum longus t.
75
Quadratus Plantae m. Action
assist in flexing digits 2-5
76
Quadratus Plantae m. Innervation
lateral plantar n.
77
Lumbrical m. Origin
flexor digitorum longus t.
78
Lumbrical m. Insertion
medial proximal phalanx of digits 2-5
79
Lumbrical m. Action
- Flex metatarsophalangeal joint
| - Extend proximal and distal interphalangeal joints
80
Lumbrical m. Innervation
1st: medial plantar n.
| 2-4th: lateral plantar n.
81
Flexor Hallucis Brevis m. Origin
plantar surface cuboid b. and lateral cuneiform b.
82
Flexor Hallucis Brevis m. Insertion
base of 1st proximal phalanx
83
Flexor Hallucis Brevis m. Action
flex 1st proximal phalanx
84
Flexor Hallucis Brevis m. Innervation
medial plantar n.
85
Flexor Digit Minimi Brevis m. Origin
base 5th metatarsal
86
Flexor Digit Minimi Brevis m. Insertion
base 5th proximal phalanx
87
Flexor Digit Minimi Brevis m. Action
flex proximal phalanx of 5th digit
88
Flexor Digit Minimi Brevis m. Innervation
superficial lateral plantar n.
89
Adductor hallucis m. Origin
- Oblique head: base of 2-4th metatarsals
| - Transverse head: plantar metatarsophalangeal l.
90
Adductor hallucis m. Insertion
lateral aspect of base of 1st proximal phalanx
91
Adductor hallucis m. Action
adduct hallux
92
Adductor hallucis m. Innervation
deep lateral plantar n.
93
Dosal Interossei m. (DAB) Origin
adjacent edges and bases of 1st-5th metatarsal bones
94
Dosal Interossei m. (DAB) Action
- Abduct digits 2-4
| - flex metatarsophalangeal joint
95
Dosal Interossei m. (DAB) Innervation
lateral plantar n.
96
Plantar Interossei m. (PAD) Origin
medial aspects and bases of 3rd-5th metatarsal
97
Plantar Interossei m. (PAD) Action
- Adduct digits 3-5
| - flex metatarsophalangeal joint
98
Plantar Interossei m. (PAD) Innervation
lateral plantar n.
