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Knee > Knee Anatomy > Flashcards

Knee Anatomy Flashcards

1
Q

Major Bones in Knee Joint

A

Femur, Patella, Tibia, Fibula

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2
Q

Femur

A

Thigh Bone –> femoral Condyle

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3
Q

Condlye

A

A rounded protrubence at the end of a bone forming an articulation with another bone. Bears brunt of force exerted on joint

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4
Q

2 Femur Condyle

A

lateral and medial

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5
Q

Lateral Femoral Condyle vs. Medial

A 
Lateral = outside, more prominent and is broader
medial = inside
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6
Q

tibia

A

Shine bone - tibial platue

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7
Q

TIbial Platue

A

proximal tibial surface where the femur rests. divided into to articular sections, one fore each femoral condyle. Function as shock obsorbers with fibrocartilagenous rings

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8
Q

Patella

A

Knee Cap.

- plays key role in the pulley mechanism that extends the knee joint. Also protects front of joint

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9
Q

Femoral Trochlea

A

Cartiligous part of the distal femur, for articulation with patella to form the femoral patellar joint. consist of groove bounded by lateral and medial ridges

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10
Q

2 types of cartilage in knee

A

Articular (Hyaline) cartilage and Meniscus (Fibrocartilage)

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11
Q

Articular Cartilage

A
  • hyaline

- cushions the end of the femur (condyles) and the back of the patella (knee cap). Smooth and strong

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12
Q

Meniscus

A
  • lateral and medial

- crescent shaped, shock absorbers disperse weight and reduce friction between articular surfaces of the femur and tibia

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13
Q

Lateral vs Medial Meniscus

A
  • lateral is more closed C-shape than the medial and covers more of the articular surface
  • Medial is fused to the MCL
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14
Q

Ligaments and Tendons (7)

A
  1. ACL
  2. LCL
  3. ligaments of fibular head
  4. MCL
  5. Quads and Patellar Tendon
  6. Popliteus Muscle and tendon
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15
Q

Cruciate vs Collateral Ligaments

A

Cruciate = ligaments found within the joint. ACL & PCL

Collateral - ligaments found outside the joint. MCL &LCL

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16
Q

Cruciate Ligaments

A

ACL & PCL

17
Q

Collateral Ligaments

A

MCL & LCL

18
Q

ACL

A

Anterior Cruciate Ligament

  • connects the lateral femoral condyle to the anterior portion of the tibal plateau
  • comrpomised of two primary bundles
19
Q

2 primary bundles of ACL

A

Anteromedial and posteromedial

- defined based off of where they connect on the tibial platue

20
Q

PCL

A

Posterior Cruciate Ligament

  • bridges from the medial femoral condyle to just beyond the posterior portion of the tibial plateau
  • composed of two primary bundles as well
21
Q

LCL AKA??

A

fibular collateral ligament

22
Q

LCL

A

connects the lateral femoral condyle to the head of the fibula
- the lcl is not attached to the meniscus of capsule
-

23
Q

MCL

A

medial collateral ligament

  • AKA tibial collateral ligament
  • connects the medial condyle of femur to the tibia
  • broader than the LCL, injured more frequently.
  • has attachments to both the capsule and the medial meniscus
24
Q

Tendon

A

serves to move bone or structure

25
Q

Ligament

A

fiburous tisse which attaches bone to bone

26
Q

Quadricep and Patellar Tendon

A
  • sometimes termed pateller ligament
  • attaches patella to the tibia. Patella is embedded w/ patella tendon which is continuous w/ the qudriceps tendpn superior to the patella
  • allows patella to move vertically upwards along groove in femur femoral trochlea
  • superior to joint characteristics of tendon. inferior to joint characteristics of ligament
27
Q

Synovial Membrane

A

Connective tissue which lines the inner surface of the capsule of a synovial joint and secrete synovial fluid to lubricate joint

28
Q

Synovial Joint

A

joint found between bones that move against eachother

29
Q

Articular Capsule

A

capsule envelops the joint. thin synovial membrane lines much of it.

30
Q

Popliteus Muscle and tendon

A

small muscle on the back of the knee spanning from the posterior of the tibia to the tendon origin on the lateral femoral condyle
- allows for rotation of tibia and femur w/ respect for each other

Knee (2 decks)

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