Answer:
a metal hinge represents elbow joint.
two wooden plants represents arm bones.
rope represents bicep muscles.
eye hook represents bicep tendons.
Explanation:
Elbow joint is the place where two bones meet with each other so in the model it represent the metal hinge. Bicep muscles helps the bones to move up and down and in the model this is the function of the rope which is attached to one of the wooden plank. Bicep tendons is the place where muscles are attached to the bone and in this model it represented by eye hook.
