foot/ankle

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Author:
joyjohnson
ID:
114444
Filename:
foot/ankle
Updated:
2011-11-04 11:04:08
Tags:
foot ankle
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Description:
foot/ankle
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  1. Three Major Functions of ankle and foot:
  2. 1. Shock absorption
    • 2. Adapt to level (unevenness) of ground
    • 3. Provide a stable base of support to propel body forward
  3. Calcaneus
  4. Tuberosity -
    • posteriorly
    • M. Sustentaculum tali
    • –Medial superior part
    • –Projects out from rest of the bone
    • –Supporting the medial side of the talus
    • –three tendons loop around, changing direction, from posterior leg to the plantar foot
  5. Metatarsals
  6. •Numbered 1-5, medial to lateral
    • •1st and 5th are weight-bearing bones
    • •2nd, 3rd, and 4th are not
    • •Landmarks
    • –Base - proximally
    • –Head - distally
  7. Phalanges
  8. •Same composition as hand
    • •Great toe = 1st digit
    • –Proximal and distal phalanx
    • •2nd through 5th
    • –“Four lesser toes”
    • –Proximal, middle, and distal phalanx
  9. Functional Aspects
  10. . Hindfoot
    • - Talus and calcaneus
    • - Contacts ground first in gait,
    • influences rest of foot
    • B. Midfoot
    • - Navicular, cuboid, and cuneiforms
    • - Provide stability and mobility
    • C. Forefoot
    • - Metatarsals and phalanges
    • - Adapts to level ground
  11. Joints and Motions
  12. Dorsiflexion
    • B. Plantar flexion
    • C.Inversion =
    • Supination
    • - raising medial border
    • D.Eversion =
    • Pronation
    • - raising lateral border
    • E. Adduction
    • F. Abduction
  13. terminology
  14. •INversion (Supination) - rigid foot for propulsion
    • –Plantar flexion
    • –Adduction
    • •Eversion (Pronation) - shock absorption
    • –Dorsiflexion
    • –Abduction
  15. calcaneal position

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