Foot

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created 5 days ago by YumikoKono
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updated 4 days ago by YumikoKono
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(26) Bones of the foot

  • 7 Tarsal (Tarsus)
    • talus
    • calcaneus
    • navicular
    • cuboid
    • cuneiforms
      • 1st: medial
      • 2nd: intermediate
      • 3rd: lateral
  • 5 Metatarsals: head, shaft, base
  • 14 Phalanges: head, shaft, base
    • 1st: proximal and distal
    • 2nd-5th: proximal, middle, distal
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talocrural joint

Synovial hinge joint

  • mortise : 1) tibial plafond 2) med. malleolus 3) fibula (lat. malleolus)
  • 4) superior trochlea surface of talus

Movement

  • Dorsiflexion:
    • Muscles in anterior compartment
  • Plantarflexion:
    • Most muscles in posterior compartment
    • Muscles in lateral compartment (weak)
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Innervation of muscles

  • Dorsal: deep fibular n .: extensor hallucis brevis m. and extensor digitorum brevis m.
  • Plantar: medial and lateral plantar n.
    • medial plantar n.:
      • abductor hallucis
      • flexor digitorum brevis
      • 1st lumbrical
      • flexor hallucis brevis
    • lateral plantar n.:
      • adductor hallucis
      • flexor digiti minimi,
      • 2nd-4th lumbricals
      • abductor digiti minimi
      • quadratus plantae
      • dorsal and plantar interossei
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