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The knee joint > Anatomy of the knee joint > Flashcards

Anatomy of the knee joint Flashcards

1
Q

Why do we have collateral ligaments?

A

to prevent the tibia from moving side to side

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2
Q

What structure is highlighted?

A

Lateral meniscus

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3
Q

What is the purpose of the infrapatellar fat pad?

A

space filler

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4
Q

What structure is highlighted in green?

A

Superficial infrapatellar bursa

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5
Q

What articulations make up the knee joint?

A

The patella and the femur

the femur and the tibia

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6
Q

What is the purpose of the prepatellar bursa?

A

To allow the skin to move smoothly over the patella

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7
Q

What is the purpose of the anterior cruciate ligament?

A

to prevent posterior displacement of the femur

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8
Q

What structure is this?

A

Medial condyle of femur

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9
Q

What structure is highlighted?

A

Anterior cruciate ligament

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10
Q

What is the purpose of the posterior cruciate ligament?

A

to prevent anterior displacement of the femur

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11
Q

What structure is highlighted?

A

medial collateral ligament

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12
Q

What structure is highlighted here?

A

lateral collateral ligament

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13
Q

What structure is highlighted in green?

A

infrapatellar fat pad

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14
Q

Which meniscus is the largest?

A

The medial meniscus

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15
Q

What structure is highlighted?

A

posterior cruciate ligament

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16
Q

What are the purpose of the menisci?

A
  • To increase the surface area of contact between the femoral condyles and tibial plateau
  • which has a cushioning act as the femur bears it’s load on the tibia
  • it also spreads synovial fluid around the joint
17
Q

The knee joint is a modified hinge joint. This means that it can perform what movements?

A
  • flexion
  • extension
  • slight rotation
18
Q

True or false?
The suprapatella bursa is a fluid filled sac

A

false

in health, a bursa is not inflamed of filled with fluid

19
Q

What structure is highlighted in green?

A

Patellar ligament

20
Q

What structure is this?

A

lateral condyle of femur

21
Q

What is the medial meniscus tethered/attached to?

A
  • the medial collateral ligament
  • the tibial plateau
22
Q

What structure is highlighted in green?

A

deep infrapatellar bursa

23
Q

What structure is highlighted in green?

A

suprapatellar bursa

24
Q

What structure is highlighted?

A

Oblique popliteal ligament

25
Q

Where does the lateral collateral ligament attach?

A

lateral femoral epicondyle

head of fibula

26
Q

Where does the medial collateral ligament attach?

A

medial epicondyle

tibia

27
Q

What structure is highlighted here?

A

medial meniscus

28
Q

What structure is highlighted in green?

A

Quadriceps tendon

29
Q

What structure is highlighted?

A

Intercondylar ridge of tibia

30
Q

What are the 2 purposes of the patella?

A
  • hold the quadriceps tendon away from the joint surfaces
  • protects the quadriceps tendon as it passes over the femoral condyles
31
Q

Where does the anterior cruciate ligament attach?

A
  • medial aspect of the lateral femoral condyle
  • medial aspect of the intercondylar ridge
32
Q

What is the purpose of the suprapatella bursa?

A

To allow for the smooth movement of one surface (quadriceps tendon) over another surface (femoral condyles)

33
Q

What structure is highlighted?

A

lateral epicondyle of femur

34
Q

Where does the posterior cruciate ligament attach?

A

the lateral aspect of medial epicondyle

lateral aspect of the intercondylar ridge

35
Q

Why is the lateral meniscus mobile, compared to the immobile medial meniscus?

A

it is not tethered to the lateral collateral ligament or the tibial plateau

36
Q

What structure is this?

A

Intercondylar notch

37
Q

What structure is highlighted?

A

medial epicondyle of femur

38
Q

What structure is highlighted?

A

tibial plateau

The knee joint (3 decks)

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