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Anatomy exam 6 > Knee joint > Flashcards

Knee joint Flashcards

1
Q

Tibia-femur joint

A
  • SYNOVIAL HINGE JOINT but some degree of rotatory movement is possible so better described as CONDYLOID JOINT
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2
Q

patella-femur

A

SYNOVIAL JOINT of the plane GLIDING variety

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3
Q

Quadriceps tendon

A
  • medial and lateral patellar retinacula
  • ENCLOSES patella
  • BURSA below tendon
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4
Q

Patellar ligament

A
  • From patella to tuberosity of tibia
  • 8 cm long
  • infrapatellar bursa
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5
Q

Fibular collateral ligaments

A
  • covered by tendon of biceps femoris
  • biceps tendon divides to go on both sides of ligament
  • extends from lateral epicondyle of femur to the head of fibula
  • Not attached to lateral meniscus
  • BOTH COLLATERAL LIGAMENTS BECOME TIGHT during EXTENSION and STABILIZE knee joint
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6
Q

Tibial collateral ligament

A
  • crossed by tendons of gracilis, semitendinous and sartorius
  • extends from medial epicondyle of femur to medial surface of tibia
  • FIRMLY ATTACHED to medial meniscus
  • BOTH COLLATERAL LIGAMENTS BECOME TIGHT during EXTENSION and STABILIZE knee joint
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7
Q

Oblique popliteal ligament

A
  • expansion of tendon of semimembranosus muscle
  • strengthened by posterior aspec of joint capsule
  • fibers go from medial condyle of tibia to lateral condyle of femur
  • forms part of the floor of popliteal foss and vessels rest on it
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8
Q

Arcuate popliteal ligament

A
  • arches medially over tendon of popliteal muscle to attach to intercondylar area of tibia and fibular head
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9
Q

Coronary ligament

A
  • deep fibers of capsule attached to the menisci
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10
Q

Anterior and posterior meniscofemoral

A

travel obliquely from the lateral menisci to the medial femoral condyle

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11
Q

Anterior cruciate ligament

A
  • very strong (cross eachother)
  • longer but weaker of the two
  • STOP HYPEREXTENSION at the knee
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12
Q

Posterior cruciate ligament

A
  • very strong (cross eachother)
  • Shorter and stronger
  • STOPS HYPERFLEXION at the knee
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13
Q

Menisci

A
  • C-shaped lamellae of FIBROCARTILAGE that are interposed between femoral and tibial condyles
  • attach to tibial condyles
  • Peripheral area is thick and attached to the capsule via coronary ligament
  • FUNCTION = DEEPEN articular surfaces
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14
Q

Nerve supply to knee joint

A
  • femoral
  • obturator
  • common peroneal and tibial
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15
Q

Blood supply to knee joint

A
  • Genicular anastomosis

- middle genicular artery penetrates the capsule and supplies intercondylar structures

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16
Q

Flexion movement of Knee joint

A
  • Biceps femoris, Semitendinosus and semimembranosus (anterior)
17
Q

Extension movement of knee joint

A

Quadriceps femoris (posterior)

Anatomy exam 6 (6 decks)

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