Basics of the Knee Joint | Tibiofemoral & Patellofemoral Joints

The video explores the complexity of the knee joint, emphasizing that it is not merely a hinge joint due to its rotational capabilities. It details the three main components: the tibiofemoral joint, the patellofemoral joint, and the fibrous capsule. The tibiofemoral joint is described as a modified condyloid joint, while the patellofemoral joint's anatomy and function are examined, highlighting the importance of the patella in force generation and stabilization.

What makes the knee joint more complex than a simple hinge joint?

• It only allows flexion and extension.

• It is not susceptible to injury.

• It involves flexion, extension, and a small amount of rotation.

• It is composed of only two parts.

Which joint is primarily responsible for the hinge-like movement in the knee?

• Elbow joint

• Fibula joint

• Tibiofemoral joint

• Patellofemoral joint

What is the correct classification of the tibiofemoral joint?

• Hinge joint

• Pivot joint

• Ball and socket joint

• Condyloid joint

What is the largest sesamoid bone in the human body?

• Patella

• Tibia

• Fibula

• Femur

Which structure connects muscle to bone?

• Meniscus

• Ligament

• Tendon

• Cartilage

What is the primary function of the patella in the knee joint?

• To decrease the angle of pull

• To increase the leverage of the quadriceps tendon

• To prevent knee flexion

• To connect the femur to the fibula

How does the patella affect the force generated by the quadriceps?

• It increases the force by allowing an angled pull.

• It has no effect on the force.

• It increases the force by allowing a direct horizontal pull.

• It reduces the force by half.

Which muscle's fibers help stabilize the patella?

• Vastus lateralis

• Vastus medialis

• Rectus femoris

• Biceps femoris

What prevents the patella from moving too far laterally during knee flexion?

• Patellar ligament

• Quadriceps tendon

• Lateral femoral condyle

• Medial femoral condyle

What would happen to the patella if the stabilizing structures were lost?

• It would become extremely stable.

• It would not affect the patella.

• It would become extremely unstable.

• It would increase force generation.