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Gross 1 > Exam 4 Part 2 Knee joint > Flashcards

Exam 4 Part 2 Knee joint Flashcards

1
Q

The knee joint is formed from the articulation of the:

A

Femur, tibia, & patella

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2
Q

During development, 3 separate joints become continuous w/ each other & form a single, large knee cavity

A
  1. B/t patella & femur
  2. B/t lateral condyles of the femur & tibia
  3. B/t medial condyles of the femur & tibia
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3
Q

Articulating surface of the tibial condyles are also known as?

A

Lateral & medial tibial plateaus

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4
Q

Joint b/t the FEMUR & TIBIA is classified as?

A

Ginglymus (hinge) w. some degrees of rotation when joint is flexed

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5
Q

Joint b/t the PATELLA & FEMUR is classified as?

A

Plane gliding

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6
Q

Nerve supply to the knee joint?

A

Femoral
Obturator
Common fibular
Tibial

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7
Q

Bursae that lies b/t the patella & the skin

A

Subcutaneous PREpatellar

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8
Q

Bursae that lies b/t the tibial tubercle & the skin

A

Subcutaneous INFRApatellar

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9
Q

Bursae found b/t the ligamentum patella & the tibial tubercle

A

Deep infrapatellar

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10
Q

Bursae that lies b/t the femur & the common tendon of insertion of the quadriceps

A

Suprapatellar

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11
Q

Extrinsic ligaments of the knee joint (4)

A
  1. Ligamentum Patella
  2. Lateral (fibular) collateral
  3. Medial collateral
  4. Oblique & Arcuate Popliteal
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12
Q
  • Anterior lig. of the knee joint & represents the original distal common tendon of insertion of the quadriceps
  • Runs from the apex of the patella to the tibial tubercle
  • Important part in maintaining the alignment of the patella relative to the articular surface of the femur
A

Ligamentum Patella

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13
Q
  • Located on the lateral side of the joint
  • superficial & separate from the articular capsule of the joint
  • Attaches from the lateral epicondyle of the femur (proximally) to the head of the fibula (distally)
  • Functions as a wall & prevents lateral movement (abduction) at the joint
A

Lateral (fibular) Collateral

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14
Q
  • Medial side of the knee joint
  • Blends w/ the articular capsule & directly attaches to the medial meniscus
  • Attaches the medial epicondyle of the femur (proximally) & to the medial side of the tibia, just below the medial condyle (distally)
A

Medial (Tibial) Collateral

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15
Q
  • Found on the posterior aspect of the knee joint
  • They both function as walls to prevent HYPERextension of the joint
  • They also stabilize the posterior aspect of the knee joint
A

Oblique & arcuate popliteal

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16
Q

Intrinsic ligaments of the knee joint (7)

A
  1. Anterior Cruciate
  2. Posterior Cruciate
  3. Menisci or semilunar Cartilages
  4. Medial Meniscus
  5. Lateral Meniscus
  6. Coronary Lig.
  7. Transverse lig. of the knee
17
Q
  • These are 2 VERY strong lig. which cross each other like an X in the center of the knee joint
  • Named Ant. & post. according to their tibial attachments
  • They are main bonds b/t the femur & tibia
A

Cruciate Ligaments (Ant. & Post.)

18
Q
  • Well developed blood supply from time of birth until 18 months old
  • Nutrition is supplied to the menisci of an adult through blood vessels in the peripheral portion & by diffusion from the synovial fluid for the central portion of the menisci
A

Menisci or Semilunar Cartilages

19
Q

Main functions of the menisci are to:

A
  1. Deepen the articulating surface
  2. Act as a shock absorber
  3. Act as a mechanoreceptor to increase positional sense of the knee joint
20
Q
  • Weaker of the 2 cruciate lig. runs from the lateral condyle of the femur (proximally) to the anterior intercondylar area of the tibia (distally)
  • prevents anterior displacement of the tibia under the femur & thus functions like a ROPE
A

Anterior Cruciate

21
Q
  • Stronger of the cruciate lig.

- Runs from the medial condyle of the femur (proximally) to the posterior intercondylar area of the tibia (proximally)

A

Posterior Cruciate

22
Q
  • ā€œCā€ Chaped & firmly adheres to the tibial collateral lig.

- Its less mobile on the surface of the tibia

A

Medial Meniscus

23
Q
  • Nearly circular in shape & smaller than medial meniscus

- More freely movable on the surface of the tibia

A

Lateral Meniscus

24
Q
  • Ass. w/ the menisci

- Are a portion of the joint capsular lig. whch attaches to the edge of the menisci & helps to hold them in place

A

Coronary Ligaments

25
Q

Joins the anterior edges of the medial & lateral menisci & allows them to work together

A

Transverse Ligament of the knee

26
Q

Nerve supply to the knee joint

A

Femoral
Obturator
common fibular ; tibial

Gross 1 (29 decks)

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