Lower Limb Muscles Flashcards by Sofie Hasselberg

Gluteus maximus

Dorsal surface of sacrum, gluteal surface of ilium, thoracolumbar fascia, sacrotuberous ligament
Upper: iliotibial tract (abductor)
Lower: gluteal tuberosity (adductor)
Extend, externally rotates
Superior gluteal nerve

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Gluteus medius

Ilium
Greater trochanter
Abducts, external/internal rotation
Superior gluteal nerve

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Gluteus minimus

Ilium
Greater trochanter
Flexion/extension, internal/external
Superior gluteal nerve

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Tensor fascia lata

ASIS
Iliotibial tract
Fascia lata, abduction
Sup gluteal n

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Obturator internus

Obturator foramen
Greater trochanter
Ext rotation, add
Direct from sacral plex

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Quadratus femoris

Ischial tuberosity
Intertrochanteric crest
Add, ext rot
Sacral plex

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Gemelli

Sup: ischial spine
Inf: ischial tub
Greater trochanter
Ext rot, add
Sacral plex

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Obturator externus

Obtorator membrane
Trochanteric fossa
Add, ext rot
Obturator n

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Pectineus

Pectineal line
Linea aspera
Add, ex rot
Obturator + femoral

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Adductor longus

Inferior pubic ramen
Linea aspera
Add, flex
Obturator n

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Adductor Brevis

Inferior pubic ramen
Linea aspera
Add, flex
Obturator n

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Adductor magnus

Inf pubic ramus
Linea aspera
Add, flex
Ob n

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Adductor minimus

Inf pubic ramen
Linea aspera
Add, ex rot
Ob n

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Gracilis

Inf pubic ramen
Tibial tuberosity
Add, flex
Ob n

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Sartorius

Ant sup iliac spine
Tibial tuberosity
Flex, add, int rot
Femoral n

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Quadratus femoris

Rectus femoris:
aiis
Vastus medialis:
Linea aspera, 
Lateralis:
Linea aspera, trochanter
Intermedialis:
Anterior femoral shaft

Tibial tuberosity, patellar ligament
Flex hip, ext knee
Femoral n

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Biceps femoris

Long: Ischial tuberosity + sacrotuberous
Short: linea aspera
Ext, flex, int rot
Tibial (long), common fibular (short)

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Semimembranosus

Ischial tuberosity
Medial tibial condyle, popliteal oblique lig, popliteus fascia
Ext, flex, int rot
Tib

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Semitendinosus

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Ischial tuberosity, sacrotuberous lig
Pes anserinus, medial to tibial tuberosity
Ext, flex, int rot
Tib

Popliteus

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Lateral femoral Con
Post tibial surface
Flex, int rot
Tibial

Tibialis anterior

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Lateral surface of tibia, crural interosseous + fascia
Medial cuniform+ 1st metatarsal
Talocrural: dorsiflextion
Subtalar: inversion
Deep fibul

Extensor digitorum longus

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Lateral tibial cond + down
Dorsal aponeurosis 2-5 toes, distal phalanges 2-5 toes
Dorsiflexion, eversion, ext to toes
Deep fib

Extensor hallucis Longus

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Medial surface of fibula
Dorsal aponeurosis + distal phalanx bigtoe
Dorsiflextion, ev/inv, Ext
Deep fibular

Fibularis longus

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Head fibula
Medial cuniform, 1 metac
Plantar flex, eve
Super fibular

Fibularis brevis

Distal half fibula Medial cuniform Plantar flex, eve, Sup fibul

Fibularis tertius

Distal fibula 5 metatarsal Dorsiflexion, eve Deep fibular

Triceps surae

``` Soleus: fibula, soleal line Gatrocnemius: lat + med (epicon) Calcaneal tuberosity (achillies tendon) Plantar flex, inv, flex Tib ```

Plantaris

Prox lat gastrocnemius Achillies tendon - Tib

Tibialis posterior

Crural interos memb Navicular tuberosity, cuniforms Plantar flex, inve Tib

Flexor digitorum longus

Post tibia 2-5 phalangs Plantar flex, inv, Tib

Flexor hallucis longus

Distal post fibula Distal phalanx hallucis Plantar flex, inv, Tib

Extensor digitorum brevis

Dorsal calcaneus Apnoneurosis 2-4 + middle plalangs Ext metatarsal Deep fib

Extensor hallucis brevis

Calcaneus Aponeurosis big toe Ext big toe Deep fib

Abductor hallucis

Calcaneal tuberosity, plan aponeurosis Prox phalangs, big toe Flex + medial abdu Medial plantar

Flexor hallucis brevis

``` Cuniform medial + intermediate Two heads medial + lateral prox big toe Flex Med: medial plantar Lat: lateral plantar ```

Adductor hallucis

Obl: 2-4 meta, cuboid, Lat cuniform 1 prox phalangs Flex, add Lat plantar

Abductor digit minimi

Calcaneal tuberosity Prox phalangs 5th Flex, abd Lateral plantar

Flexor digit minimi brevis

5th metatarsal, long plantar lig Prox phalangs Flex, abd Lat plantar

Opponens digit minimi

``` Might be included with fdmb Long plantar lig, fibularis longus 5th metatarsal Slight opponens Lat plantar ```

Flexor digitorum brevis

Calcaneal tuberosity, plan aponeurosis Mid phalangs 2-5 toe Flex Medial plantar

Quadratus plantae

Calcaneal tuberosity Lateral of FDLongus tendon Redirects pull Lat plantar

1-4 lumbrical

``` Medial of FDLongus tendon 2-5 toe, dorsal aponeurosis Flex + ex 1+2: medial plantar 3+4: lateral plantar ```

1-3 plantar interosseous

Medial of 3+5 metatarsal Prox phalanx Flex, Ext Lateral plantar

1-4 dorsal interossei

1-4 meta two heads Medial + Lat base Flex, ext Lat plantar

Psoas major

T12 + L1-L4 Lesser trochanter Flexion, external rotation Femoral nerve + branches lumbar

Lower Limb Muscles Flashcards

(45 cards)