Knee Anatomy and Function Assessment

The video tutorial provides an in-depth explanation of the muscles surrounding the knee joint, using a model for demonstration. It covers the quadriceps, patella, and tendons, explaining their roles in knee extension and the locking mechanism. The tensor fasciae latae and IT band are discussed in terms of lateral stability. The hamstrings, medial muscles, and Sartorius are explained for their roles in knee flexion and rotation. Finally, the gastrocnemius and popliteus muscles are covered, highlighting their functions in knee flexion and unlocking.

Which muscle group is primarily responsible for extending the knee?

• Quadriceps

• Sartorius

• Hamstrings

• Gastrocnemius

What is the role of the vastus medialis in knee movement?

• Flexes the knee

• Locks the knee in full extension

• Rotates the hip

• Stabilizes the ankle

Where does the iliotibial band attach on the lateral side of the knee?

• Medial condyle

• Gerdy's tubercle

• Tibial tubercle

• Patella

What is the role of the tensor fasciae latae in relation to the iliotibial band?

• Flexes the knee

• Tenses the fasciae latae

• Rotates the tibia externally

• Stabilizes the ankle

What is the primary function of the biceps femoris?

• Extends the knee

• Stabilizes the ankle

• Flexes the knee

• Rotates the hip internally

Which muscle is involved in both knee flexion and plantar flexion of the ankle?

• Tensor fasciae latae

• Gracilis

• Gastrocnemius

• Sartorius

Which muscle group assists in hip extension and knee flexion?

• Popliteus

• Iliotibial band

• Hamstrings

• Quadriceps

Which muscle is not primarily a knee muscle but assists in knee flexion?

• Sartorius

• Vastus lateralis

• Rectus femoris

• Popliteus

What is the function of the popliteus muscle during knee movement?

• Stabilizes the hip

• Extends the knee

• Locks the knee

• Unlocks the knee

What is the difference between open and closed chain exercises in terms of knee movement?

• Open chain involves the femur rotating on the tibia

• Closed chain involves no rotation

• Open chain involves the tibia rotating on the femur

• Closed chain involves the tibia rotating on the femur