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Musculoskeletal System > Muscles of Leg > Flashcards

Muscles of Leg Flashcards

(60 cards)

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1
Q

THE LEG

A
  1. ANTERIOR:
    - Turn foot outward
  2. POSTERIOR:
    - Dorsiflexion foot and extension digits
  3. LATERAL:
    - Plantarflexion and flexion of digits

Anterior compartment= Deep Fibular Nerve
Lateral compartment= Superficial Fibular Nerve
Posterior Compartment = Tibial Nerve

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2
Q

TIBIALIS ANTERIOR (Origin)

A

Lateral surface Tibia
Interosseus Membrane

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3
Q

TIBIALIS ANTERIOR (Insertion)

A

Medial and Inferior surfaces Medial Cuneiform
Base first metatarsal

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4
Q

TIBIALIS ANTERIOR (Innervation)

A

Deep Fibular Nerve

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5
Q

TIBIALIS ANTERIOR (Action)

A

Dorsiflexion ankle joint
Inversion foot
Supports Medial arch foot

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6
Q

EXTENSOR DIGITORUM LONGUS (Origin)

A

Proximal 1/2 Anterior surface Fibula
Lateral condyle Tibia

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7
Q

EXTENSOR DIGITORUM LONGUS (Insertion)

A

Dorsal expansion Lateral 4 toes

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8
Q

EXTENSOR DIGITORUM LONGUS (Innervation)

A

Deep Fibular Nerve

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9
Q

EXTENSOR DIGITORUM LONGUS (Action)

A

Extension Lateral 4 toes
Dorsiflexion ankle

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10
Q

EXTENSOR HALLUCIS LONGUS (Origin)

A

Middle 1/2 Anterior surface shaft Fibula
Interosseus membrane

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11
Q

EXTENSOR HALLUCIS LONGUS (Insertion)

A

Dorsal surface base distal phalanx big toe

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12
Q

EXTENSOR HALLUCIS LONGUS (Innervation)

A

Deep Fibular Nerve

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13
Q

EXTENSOR HALLUCIS LONGUS (Action)

A

Extention big toe
Dorsiflexion ankle joint

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14
Q

FIBULARIS TERTIUS (Origin)

A

Distal part Medial surface Fibula

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15
Q

FIBULARIS TERTIUS (Insertion)

A

Dorsomedial surface base 5th metatarsal

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16
Q

FIBULARIS TERTIUS (Innervation)

A

Deep Fibular Nerve

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17
Q

FIBULARIS TERTIUS (Action)

A

Dorsiflexion ankle joint
Eversion foot

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18
Q

EXTENSOR RETINACULUM

A

SUPERIOR Extensor Retinacalum:
- Thickening deep fascia leg
- Superior to ankle joint
- Attached to Anterior surface Tibia and Fibula
INFERIOR Extensor Retinaculum:
- Y-shaped
- Base laterally to Calcaneus
- Crosses medially over foot
- Arms attach medial Malleolus and Plantar Aponeurosis

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19
Q

FIBULARIS LONGUS (Origin)

A

Proximal end Lateral surface Fibula

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20
Q

FIBULARIS LONGUS (Insertion)

A

Inferior surface Distal end Medial Cuneiform
Base first metatarsal

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21
Q

FIBULARIS LONGUS (Innervation)

A

Superficial Fibular Nerve

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22
Q

FIBULARIS LONGUS (Action)

A

Eversion foot
Plantarflexion ankle
Supports Lateral and Transverse arches

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23
Q

FIBULARIS BREVIS (Origin)

A

Distal 2/3 Lateral surface shaft Fibula

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24
Q

FIBULARIS BREVIS (Insertion)

A

Lateral Tubercle base 5th metatarsal

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25
FIBULARIS BREVIS (Innervation)
Superficial Fibular Nerve
26
FIBULARIS BREVIS (Action)
Eversion foot Plantarflexion ankle
27
FIBULAR RETINACULUM
SUPERIOR Fibular Retinaculum: -Extends between Lateral Malleolus and Calcaneus INFERIOR Fibular Retinaculum: - Attaches Lateral surface Calcaneus - Blends Inferior Extensor Retinaculum
28
GASTROCNEMIUS (Origin)
MEDIAL Head - Popliteal surface Medial condyle LATERAL Head - Posterlateral surface Lateral Femoral condyle
29
GASTROCNEMIUS (Insertion)
Posterior surface Calcaneus via Calcaneal tendon
30
GASTROCNEMIUS (Innervation)
Tibial Nerve
31
GASTROCNEMIUS (Action)
Plantarflexion ankle joint (lifts heel when walking) Assists flexion knee
32
SOLEUS (Origin)
Soleal line and Medial border Tibia Posterior surface head and neck of Fibula
33
SOLEUS (Insertion)
Posterior surface Calcaneus via Calcaneal tendon
34
SOLEUS (Innervation)
Tibial Nerve
35
SOLEUS (Action)
Plantarflexion ankle joint
36
PLANTARIS (Origin)
Inferior surface Lateral supracondylar line Femur Oblique popliteal ligament
37
PLANTARIS (Insertion)
Posterior surface Calcaneus via Calcaneal tendon
38
PLANTARIS (Innervation)
Tibial Nerve
39
PLANTARIS (Action)
Plantarflexion ankle joint
40
FLEXOR HALLUCIS LONGUS (Origin)
Posterior surface Fibula Interosseus membrane
41
FLEXOR HALLUCIS LONGUS (Insertion)
Plantar surface Distal phalanx big toe
42
FLEXOR HALLUCIS LONGUS (Innervation)
Tibial Nerve
43
FLEXOR HALLUCIS LONGUS (Action)
Flexes big toe Assists Plantarflexion Supports Medial longitudinal arch during walking and running
44
FLEXOR DIGITORUM LONGUS (Origin)
Medial side Posterior surface Tibia
45
FLEXOR DIGITORUM LONGUS (Insertion)
Plantar surface bases Distal phalanges Lateral 4 toes
46
FLEXOR DIGITORUM LONGUS (Innervation)
Tibial Nerve
47
FLEXOR DIGITORUM LONGUS (Action)
Flexion Lateral toes during walking/running Plantarflexion ankle joint supports Medial longitudinal arch
48
TIBIALIS POSTERIOR (Origin)
Lateral surface Posterior surface Tibial shaft Medial surface Posterior surface Fibular shaft Interosseus membrane
49
TIBIALIS POSTERIOR (Insertion)
Tuberosity Navicular - Adjacent surface Medial Cuneiform
50
TIBIALIS POSTERIOR (Innervation)
Tibial Nerve
51
TIBIALIS POSTERIOR (Action)
Inversion foot Plantarflexion ankle joint Supports Medial longitudinal arch
52
POPLITEUS (Origin)
Lateral femoral condyle
53
POPLITEUS (Insertion)
Posterior surface Proximal surface Tibia
54
POPLITEUS (Innervation)
Tibial Nerve
55
POPLITEUS (Action)
Stabilizes knee joint Unlocks knee initiation flexion Laterally Rotates Femur over Tibia Pulls Meniscus backwards when knee flexed
56
POPLITEAL FOSSA (Borders)
1. SUPEROLATERAL - Biceps Femoris 2. INFEROLATERAL - Lateral head Gastrocnemius 3. SUPEROMEDIAL - Semimembranosus and Semitendinousus 4. INFEROMEDIAL - Medial head Gastrocnemius
57
POPLITEAL FOSSA (Roof)
Skin Fascia Opening of small Saphenous Vein
58
POPLITEAL FOSSA (Floor)
Popliteal area Joint capsule Fascia covering Popliteus
59
POPLITEAL FOSSA (Contents)
Popliteal Artery Popliteal Vein Tibial Nerve Common Fibular Nerve Lymphatic Vessels Fat
60
TARSAL TUNNEL
FLEXOR RETINACULUM - Medial Malleolus Anteriorly - Inferomedial margin Calcaneus Posteriorly Tom, Dick And Very Nervous Harry ~ tendon of Tibialis posterior ~ flexor Digitorum Iongus ~ posterior tibial Artery ~ posterior tibial Vein ~ tibial Nerve ~ tendon of flexor Hallucis longus

Musculoskeletal System (17 decks)

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