Kin Final

Card Set Information

Author:
hgienau
ID:
55081
Filename:
Kin Final
Updated:
2010-12-11 19:15:41
Tags:
kin bio LE
Folders:

Description:
biomechanics, pelvis girdle
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  1. Define force couple
    occures when two forces act in an equal but opposite direction
  2. First Class lever
    • FAR
    • axis between the force and resistance
    • designed for balance
    • head sitting on C1
  3. Second Class lever
    • ARF
    • Axis is opposite force resistance in middle
    • designed for power
  4. Thrid Class lever
    • AFR
    • Most common in body
    • Disigned for ROM
  5. Define Mechanical Advantage
    an increase in the length of the FA or decrease in the RA reults in greater mechanical advantages
  6. Define the SI joint
    • Sacroiliac joint
    • synovial nonaxial plane joint
    • no voluntary motion
  7. Define Nutation
    • Sacral flexion
    • base of scarum moves anteriorly and inferiorly
    • occurs with trunk flexion or hip extension
  8. Define Counternutation
    • Sacral extension
    • Base of sacrum moves posteriorly and superiorly
    • occures with trunk extension and hip flexion
  9. Lumbosacral joint
    • articulation between the sacrum and lumbar spine
    • superior
  10. Lumbosacral angle
    • formed by drawing one line parallel to the ground and another line along the base of the sacrum
    • optimal angle is 30
  11. Iliofemoral Ligament
    • Y ligament ligament of bigelow
    • reinforces capsule anteriorly
    • limits hyperextension
  12. Pubofemoral Ligament
    Limits hyperextension and abduction
  13. Ischiofemoral ligament
    Limits hyperextension and interanl rotation
  14. Screw-home mechanism in the knee
    • medial femoral condyle is longer than the lateral condyle
    • closed chain - femur medial rotation
    • open chain - tibia lateral rotation
  15. Functional aspects of the hindfoot
    • talus and calcaneus
    • contacts the ground first in gait influences rest of foot
  16. Functional aspect of midfoot
    • navicular, cuboid, and 3 cuniforms
    • provides stabilitya and mobility
  17. Functional Aspects of forefoot
    • metatarsals and phalanges
    • adapts to level ground
  18. Ankle joint
    • Talocrural
    • made up of the tibia nad talus
    • uniaxial hinge joint
  19. Subtalar/ talocalcaneal
    • talus and calcaneus
    • gliding motion
  20. Trasnverse Tarsal Joint
    anterior talus and calcaneus, posterior navicular and cuboid
  21. Spring Ligament
    Calcaneonvicular
    • attches to calcanues to navicular
    • supports the medial side of arch
  22. Long plantar ligament
    • calcaneus to bases of metatarsals 3-5
    • supports the lateral longitudinal arch
  23. Short Plantar ligament
    • Calcaneus to cuboid
    • support lateral foot
  24. plantar aponeurosis
    • calcanues to proximal phalanges
    • supports lateral foot

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