the what of a muscle is usually attached to a fixed location
exists and is an alternate of. Merge this question into. Split and merge into it. Answer by Mayiwrite. Confidence votes 549. A muscle insertion is the end of a muscle attached to the free-moving bone of its joint. A muscle origin is the end of the muscle attached to the relatively fixed bone of the joint.xists and is an alternate of. Merge this question into. Split and merge into it. Answer by Mayiwrite. Confidence votes 549. A muscle insertion is the end of a muscle attached to the free-moving bone of its joint. A muscle origin is the end of the muscle attached to the relatively fixed bone of the joint.