KINE 3135: The Knee Joint (Part 2)

The video tutorial explores the anatomy and function of the knee joint, debunking the common misconception that it is a hinge joint. It explains the four main motions of the knee: flexion, extension, hyperextension, and rotation, and discusses the muscles involved in these movements, including the quadriceps and hamstrings. The tutorial also introduces the concept of the Q angle and its significance in knee anatomy.

What is the correct classification of the knee joint?

• Hinge joint

• Ball and socket joint

• Condyloid joint

• Pivot joint

Which motion involves decreasing the angle of the knee joint?

• Extension

• Hyperextension

• Flexion

• Rotation

What is the risk associated with hyperextension of the knee?

• Improved flexibility

• Increased strength

• Potential injury

• Enhanced balance

Which muscle group is primarily responsible for knee flexion?

• Calf muscles

• Hamstrings

• Gluteal muscles

• Quadriceps

Internal rotation of the knee requires the knee to be in what state?

• Neutral

• Hyperextended

• Flexed

• Extended

What is the Q angle?

• The angle formed by the femur and tibia

• The angle between the hip and knee

• The angle of knee flexion

• The angle between a vertical line through the knee and a line from the hip to the patella

Why do women generally have a larger Q angle than men?

• Greater flexibility

• Shorter femurs and wider hips

• Longer femurs and narrower hips

• Stronger muscles

Which muscle is not part of the quadriceps group?

• Rectus femoris

• Vastus intermedius

• Bicep femoris

• Vastus medialis

Which muscle is primarily involved in knee extension?

• Quadriceps

• Hamstrings

• Gluteal muscles

• Calf muscles

What role does the popliteus muscle play in knee movement?

• Flexion during extension

• External rotation during extension

• Extension during flexion

• Internal rotation during flexion