Final answer:
The knee joint consists of two separate articulations, one of which includes a sesamoid bone.
Step-by-step explanation:
The joint that consists of two separate articulations, one of which includes a sesamoid bone, is the knee joint. The knee joint is formed by the articulation of the femur (thigh bone), tibia (shin bone), and patella (kneecap). The patella acts as a sesamoid bone, as it is embedded within the quadriceps tendon and increases the leverage of the quadriceps muscle during knee extension.
Learn more about Knee joint and sesamoid bones