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HL10522 - Anatomy and Biomechanics > Week 5 - The Knee Joint > Flashcards

Week 5 - The Knee Joint Flashcards

1
Q

what are the 3 articulations of the knee ?

A
  • medial tibiofemoral
  • lateral tibiofemoral
  • patellofemoral joint
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2
Q

what are the characteristic of tibiofemoral joints ?

A
  • bicondylar articulations between medial and lateral condyles of tibia and femur
  • large RoM
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3
Q

what are the characteristics of patellofemoral joints ?

A
  • triangular shaped bone

- improves mechanical advantage of the extensor muscles

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4
Q

what factors contribute to stability of a joint ?

A
  • shape of articulating bone surfaces
  • arrangement of ligaments and muscles
  • connective t and capsular tissue
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5
Q

what is the menisci ?

A
  • fibrocartilage semilunar discs
  • between tibial and femoral condyles
  • absorb shock
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6
Q

define cruciate ligaments ?

A

make a cross within the knee capsule

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7
Q

what are the 2 cruciate ligaments ?

A
  • anterior cruciate ligament

- posterior cruciate ligament

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8
Q

what are the characteristics of the anterior cruciate ligament ?

A
  • starts from anterior aspect of tibia

- connects anterior of tibia to posterior medial surface of femur

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9
Q

what are the characteristics of the posterior cruciate ligament ?

A
  • starts from posterior of tibia

- connects posterior of tibia to lateral anterior of femur

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10
Q

what are the 2 collateral ligaments ?

A
  • lateral collateral ligament

- medial collateral ligament

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11
Q

what are the characteristics of the lateral collateral ligament ?

A

connects lateral epicondyle of femur to head of fibula

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12
Q

what are the characteristics of the medial collateral ligament ?

A

connects medial epicondyle of femur to medial tibia

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13
Q

what is the iliotibial band ?

A
  • string band of connective tissue connecting TFL to lateral condyle of femur and lateral tuberosity of tibia
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14
Q

what are the anterior muscles of the knee ?

A
  • rectus femoris
  • vastus lateralis
  • vastus medialis
  • vastus intermedius
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15
Q

what are the posterior muscles of the knee ?

A
  • hamstrings
  • popliteus
  • gastrocnemius
  • plantaris
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16
Q

what movements occur at the quadriceps ?

A

knee extension

17
Q

what movement occurs at the hamstrings ?

A
  • flexion

- extension

18
Q

what movements occur at the popliteus ?

A
  • initiates flexion

- ‘unlocks’ the knee by slight m.rotation of tibia

19
Q

what movements occur at the gastrocnemius ?

A
  • knee flexion

- plantarflexion

20
Q

what movements occur at the plantaris ?

A
  • knee flexion

- plantarflexion

HL10522 - Anatomy and Biomechanics (18 decks)

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