Final answer:
The type of movement enabled by the articulation between the radius and ulna at the elbow is supination, which rotates the forearm to a palm forward position.
Step-by-step explanation:
The movement enabled by the articulation between the radius and ulna at the elbow is known as supination. Supination involves the rotation of the radius at the proximal radioulnar joint, along with movement at the distal radioulnar joint, resulting in the forearm moving from a pronated (palm backward) to a supinated (palm forward) position.
In the supinated position, the radius and ulna lie parallel to one another, in contrast to the pronated position where they form an X-shape. Supination is the opposite of pronation and can be remembered as the motion used to scoop soup with a spoon. It's important to note that the proximal radioulnar joint is a pivot joint that facilitates this rotation of the radius, allowing these movements to occur smoothly.