Knee and Ankle Joints

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Author:
Bobopudge
ID:
57882
Filename:
Knee and Ankle Joints
Updated:
2011-01-07 17:29:34
Tags:
Lower Limb Anatomy
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  1. What type of joint is the knee joint?
    Synovial hinge joint
  2. Which bones take part in the knee joint?
    • Tibia
    • Femur
    • Patella
  3. What is the largest sesamoid bone in body?
    Patella
  4. What shape is the patella?
    • Triangular
    • Points downwards
  5. Which muscle prevents lateral dislocation of the patella?
    Vastus medialis
  6. Which Femoral condyle is larger?
    Lateral
  7. Which Tibial condyle is larger
    Medial
  8. What is the Intercondylar Fossa?
    Space between the medial and lateral femoral condyles
  9. Discuss the stability of the knee joint
    • Stable in extension
    • Unstable in flexion
  10. What are the boundaries of the knee joint capsule?
    • Superiorly: femoral condyles
    • Posteriorly: encloses intracondyler fossa
    • Inferiorly: tibial plateau
    • Anteriorly: patellar ligament
  11. What do the menisci do?
    Deepen articular surfaces and cushions
  12. What are the ligaments of the knee joint?
    • Collateral ligaments
    • Cruciate ligaments
    • Patellar ligament
  13. What is the insertion of the patellar ligament?
    Tibial tuberosity
  14. Where do the medial collateral ligaments run?
    From medial femoral condyle to medial tibial condyle
  15. What does the medial collateral ligament do?
    Prevents knee abduction
  16. Where does the lateral collateral ligament go?
    From lateral femoral condyle to lateral fibula
  17. What does the lateral collateral ligament do?
    Prevents knee adduction
  18. What does the anterior cruciate ligament do?
    Prevents anterior tibial dislocation
  19. What does the posterior cruciate ligament do?
    Prevents posterior tibial dislocation
  20. Where does the anterior cruciate ligament go?
    From the anterior part of the tibia to the posterior part of the femur
  21. Where does the posterior cruciate ligament go?
    From the posterior part of the tibia to the anterior part of the femur
  22. Which ligament stabilizes the knee in flexion?
    Posterior cruciate ligament
  23. Name 3 bursae in the knee joint
    • Suprapatellar
    • Prepatellar
    • Infrapatellar
  24. Where is the superpatellar bursa?
    Between the femur and the quadriceps tendon
  25. Where is the prepatellar bursa?
    Between the skin and patella
  26. Where is the infrpatellar bursa?
    Between the skin and the tibial tuberosity
  27. What is the blood supply to the knee joint?
    • Descending genicular branches of:
    • femoral
    • popliteal
    • lateral circumflex artery of thigh
    • circumflex fibular artery in leg
  28. State the movements of the knee joint
    • Flexion
    • Extension
    • Active rotation in flexion
    • Passive rotation in extension
  29. State the origin, insertion, nerve supply and special function of the popliteus
    • Origin: lateral femoral condyle
    • Insertion: proximal posterior tibia
    • Nerve supply: tibial nerve, L4, L5, S1
    • Function: unlocks the knee during initial flexion by laterally rotating the femur on the tibia
  30. What type of joint is the the superior tibiofibular joint?
    Synovial plane joint
  31. What kind of joint is the inferior tibiofibular joint?
    Fibrous joint
  32. What kind of joint is the ankle joint
    Synovial hinge joint
  33. What are the movements of the ankle joint?
    Dorsiflexion and plantarflexion
  34. What takes part in the ankle joint?
    • Tibia
    • Fibula
    • Talus
  35. What is the medial ligament in the ankle joint?
    Deltoid ligament
  36. Where does the deltoid ligament go?
    From medial meliolus to the talus and navicular
  37. What are the lateral ligaments of the ankle joint?
    • Anterior talofibular
    • Calcaneofibular
    • Posterior talofibular
  38. Where does the anterior talofibular ligament go?
    From the lateral maliolus to the talus
  39. Where does the calcaneofibular ligament go?
    From the lateral maliolus to the calcaneus
  40. Where does the posterior talofibular ligament go
    From the lateral maliolus to the talus
  41. Which ligaments stabilize the foot in inversion?
    Lateral ligaments
  42. Which ligaments stabilize the foot in eversion?
    Deltoid ligament

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