Station 8: The Knee

Question 1

Joints of the Knee

Name, classify and identify actions that occur at the joint

Answer 1

Name: Tibiofemoral Joint

Classify: Synovial Bi-condyloid Diathrotic Biaxial

Actions

• Flexion
• Extension
• Some rotation

Question 2

Joints of the Knee

Name, classify and identify the actions that occur at the articulation between the femur and the patella

Answer 2

Name: Femoropatellar Joint

Classify: Synovial Plane Diathrotic Non axial

Actions:
-gliding of patella

Question 3

The Patella

Classify the Bone

What are its primary purposes?

Answer 3

Classify:Sesamoid Bone

Purposes:

1. Anterior protection
2. Leverage (Quadriceps)
3. Shock absorption (gliding plane)
4. Reduce friction (gliding plane)

Question 4

Ligaments of the Knee

Name the six main ligaments of the knee joint

Acknowledge if this ligament is extracapsula or intracapsular

Identify the specific movements that occur at each

Answer 4

Extracapsular:

1. Fibular Collateral Ligament
   - Resists lateral movement
2. Tibial Collateral Ligament
   - Resists lateral movement
3. Oblique Popliteal Ligament
   - Prevents hyper extension
4. Arcuate Popliteal Ligament
   - Prevents hyper extension

Intracapsular:

5. Anterior Cruciate Ligament
   - Prevents anterior displacement of the tibia/posterior displacement of the femur
   - e.g. Running and braking or twisting
6. Posterior Cruciate Ligament
   - Prevents posterior displacement of the tibia/anterior displacement of the femur
   - e.g. Hit from the front

Question 5

What structures contribute to the stability of the knee joint?

Answer 5

1. Ligaments
2. Muscles
3. Bones