lower leg and the foot

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Author:
gurpleguy
ID:
283761
Filename:
lower leg and the foot
Updated:
2014-09-22 00:22:25
Tags:
medical school
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Description:
lower limb
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  1. tibialis anterior
    • origin- tibia, intersosseous membrane and fibula
    • insertion- 1st metatarsal, medial cunceiform
    • innervation- deep fibular n
    • action-dorsiflexion, inversion
  2. extensor hallucis longus
    • origin- tibia, interosseous membrane and fibula
    • insertion- distal phalanx of great toe
    • innervation- deep fibular n
    • action- extend great toe, dorsiflex, inversion
  3. fibularis tertius
    • origin-tibia, interosseous membrane, fibula
    • insertion- base of the 5th metatarsal
    • innervation- deep fibular n
    • action- eversion, dorsiflexion
  4. fibularis longus
    • origin- fibula (upper 1/3)
    • insertion- base of the 1st metatarsal, medial cuneiform
    • innervation- superficial fibular nerve
    • action- eversion, support of arches, assist in plantar flexion
  5. fibularis brevis
    • origin- fibula (lower 2/3)
    • insertion- base of the 5th metatarsal
    • innervation- superficial fibular n
    • action- eversion
  6. extensor digitorum brevis
    • origin- calcaneus
    • insertion- extensor expansion of digits 2-4
    • innervation- deep fibular n
    • action- extension of digits 2-4
  7. extensor hallucis brevis
    • origin- calcaneus
    • insertion-base of proximal phalanx of digit 1
    • innervation- deep fibular n
    • action- extension of great toe
  8. gastrocnemius (medial and lateral head)
    • origin- medial and lateral condyle of femur
    • insertion- calcaneus via achilles tendon
    • innervation- tibial n
    • action- plantarflexion, flexion of knee
  9. plantaris
    • origin- lateral condyle of femur and joint capsule
    • insertion- calcaneus via achilles tendon
    • innervation- tibial n
    • action- plantarflexion, flexion of knee
  10. soleus
    • origin- soleal line of tibia, interosseous membrane and fibula
    • insertion- calcaneus via achilles tendon
    • innervation- tibial n
    • action- plantarflexion
  11. popliteus
    • origin- tibia, interosseous membrane, fibula
    • insertion- tibia
    • innervation- tibial n
    • action- flexion of the knee (weak), medial rotation of tibia or lateral rotation of femur (ublock the knee)
  12. flexor hallucis longis
    • origin- tibia, interosseous membrane, fibula
    • insertion- distal phalanx of 1st toe
    • innervation- tibial n
    • action- flex great toe, inversion of foot, plantarflexion
  13. flexor digitorum longus
    • origin- fibula, interosseous membrane, fibula
    • insertion- distal phalanx of digits 2-5
    • innervation- tibial n
    • action- flex toes 2-5, plantarflexion, inversion
  14. tibialis posterior
    • origin- fibula, interosseous membrane, tibia
    • insertion- navicular and medial cuneiform
    • innervation- tibial n
    • action- plantarflexion of foot, inversion of foot, dynamic support of arches

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