Also known as the kneecap, it protects the knee joint.

Also known as the kneecap, it protects the knee joint.

• A. Fibula
• B. Patella
• C. Metatarsals
• D. Coccyx

Answer: (B)

The kneecap is the patella. It sits in front of the knee, embedded in the tendon of the quadriceps, and slides within the femur’s groove as the knee bends and straightens. This setup acts as a pulley, increasing the force the quadriceps can exert to straighten the leg, while also protecting the knee joint by shielding the front and reducing friction where the tendon meets the femur. The patella is a sesamoid bone, formed within a tendon to improve leverage and smooth movement. The other bones mentioned have different roles: the fibula is a thinner bone on the outer leg that mostly provides stability and muscle attachment; metatarsals are the long bones of the foot; the coccyx is the small tailbone at the base of the spine.

The kneecap is the patella. It sits in front of the knee, embedded in the tendon of the quadriceps, and slides within the femur’s groove as the knee bends and straightens. This setup acts as a pulley, increasing the force the quadriceps can exert to straighten the leg, while also protecting the knee joint by shielding the front and reducing friction where the tendon meets the femur. The patella is a sesamoid bone, formed within a tendon to improve leverage and smooth movement.

The other bones mentioned have different roles: the fibula is a thinner bone on the outer leg that mostly provides stability and muscle attachment; metatarsals are the long bones of the foot; the coccyx is the small tailbone at the base of the spine.