Posterior compartment of the forearm Posterior compartment of the forearm The posterior compartment of the forearm (or extensor compartment) contains twelve muscles which are chiefly responsible for extension of the wrist and digits, and supination of the forearm. It is separated from the anterior compartment by the interosseous membrane between the radius and ulna. There are generally twelve muscles in the posterior compartment of the forearm, which can be further divided into a superficial, intermediate, and deep layer. Most of the muscles in the superficial and the intermediate layers share a common origin which is the outer part of the elbow, the lateral epicondyle of
Forearm (comics) a close friendship, as she sees something in him that is different from the other members of the terrorist outfit. During the time Moonstar was part of the team, Forearm ends up battling forces from the other-dimensional realm of Asgard, which had appeared due to Moonstar's history with the realm. Sometime later Reignfire begins to hunt down his followers, taking Wildside and Forearm out first. All would have been lost if not for X-Force and Locus teleporting in to stop the madman. Next the MLF travel to Muir Island where they mean to steal the Legacy Virus data from Moira