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Anatomy MSK > Knee Joint > Flashcards

Knee Joint Flashcards

1
Q

Knee joint type

A

Synovial condylar joint (modified hinge)

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2
Q

Knee joint location

A

Between lateral and medial femoral and tibial condole side

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3
Q

Patelofemoral joint (part of the knee joint) type

A

Gliding joint

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4
Q

Patelofemoral joint location

A

Between the patella and patella surface of the femur

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5
Q

Patella is the largest ————— bone

A

Sesamoid

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6
Q

Patella is ——— in shape and has apex. ——-

A

Triangular

Inferiorly

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7
Q

Medial side of femoral and tibial condolences are

A

Oval

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8
Q

Lateral side of femoral and tibial condyles are

A

Round

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9
Q

Differences in shape allow?

A

Lateral rotation of the tibia under the femur at the end of extension of the knee

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10
Q

Femoral aspect of the knee capsule is demarcated by ?

A
  • proximal femoral condyles and i
  • intercondylsr fossa posterioly
  • patellar retinaculum anteriorly
  • articular margin of the femur medially
  • femur just proximal to the groove for the popliteus tendon laterally
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11
Q

Tibial aspect of the knee capsule is demarcated by ?

A

M

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12
Q

Knee capsule is a ——— structure

A

Dual-layered

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13
Q

Knee capsule is ———- anteriorly and posteriorly, and laterally ————-

A

Thin

Thickened

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14
Q

Laterally knee capsule is thickened by

A

Collateral ligament

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15
Q

The outer layer of knee capsule consist of

A

Fibrous connective tissue

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16
Q

The inner layer of knee capsule consists of

A

Synovial membrane

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17
Q

Why there is no capsule over the patella?

A

Allowing the suprapatellar bursa to communicate with the joint

18
Q

On lateral side, there is

A

Tendon of vastus lateralis muscle

19
Q

On medial side, there is

A

Tendon of vastus medial is muscle

20
Q

Anterior knee capsule joint

A

Thick but deficient/absent anteriorly

21
Q

Why Is the capsule Thick but deficient/absent anteriorly

A

Allowing the synovial membrane to pouch upward beneath the quadriceps tendon forming
suprapatellar bursa

22
Q

Anterior capsule reinforced by

A
  • quadriceps tendon
  • patella
  • ligamentum patella
  • medial and lateral patellar retinacula
  • expansion from the iliotibial tract(superior patella retinaculum)
23
Q

Posterior capsule reinforced by

A

1) semimembranosus tendon and its extension the (oblique popliteal ligament )
2) Arcuate popliteal ligament (passing above popliteus muscle)

24
Q

Laterally

A

Biceps femoris

Lateral rotation of the knee joint

25
Q

The major ligaments in the knee joints are:

A

1) patellar lig
2) collateral lig
3) cruciate lig

26
Q

Collateral structure laterally;

A
  • Fibular collateral ligament
  • iliotibial tract
  • expansion from biceps femoris
27
Q

Medially structures (

A
  • tibial collateral lig
  • pes anserinus
  • semimembranous tendon
28
Q

Shape of medial tibial collateral lig

A

Broad flat band

29
Q

medial tibial collateral lig extending from ———— and attach to ———-

A
  • Medial epicondyle of of femur(below adductor tubercle)

- medial condyle of tibia and medial surface of shaft of tibia

30
Q

medial tibial collateral lig crossed by tendon of

A
  • sartorius
  • gracilis
  • semitendinous(pes anserinus)
31
Q

Lateral fibular collateral lig shape

A

Thin, Round cord-like

32
Q

Lateral fibular collateral lig runs from ————- to——-

A
  • lateral epicondyle of femur (above groove of popliteus)

- depression on lateral surface of fibular head

33
Q

Lateral fibular collateral lig primarily covered by

A

Tendon of the biceps femoris muscle

34
Q

Intracapsular lig

A

1) anterior cruciate lig

2) post cruciate lig

35
Q

Intracapsular lig connect

A

Femur with tibia

36
Q

Function of collateral lig

A

Tight in extension
Relaxed in flexion
-prevent addiction/abduction of the knee joint

37
Q

Function of cruciate

A

Tight in both extension and flexion
Relaxed at 30 degree of flexion
-Prevent anterior and post lig displacement of tibia onto the femur

38
Q

Test for injury to cruciate lig

A

Anterior drawer test

39
Q

Anterior drawer test

A

Pull tibia forward, if it moves the lig has been torn

40
Q

ACL can be torn by

A

Hyper extension of knee joint

Large force of back the knee

41
Q

Most common mechanism of PCL damage

A

Dashboard injury

42
Q

Dashboard injury occur when

A

Knee is flexed

Anatomy MSK (10 decks)

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