The rings can be assembled one by one into chains, earrings, objects such as bowls or ornaments, and chain mail clothing. The making of items from jump rings is called chain maille ( maille  is French for  mesh ).
Ulnar nerve. The ulnar nerve is a nerve that travels from the wrist to the shoulder. This nerve is mainly responsible for movement of the hand; despite passing through the forearm, it is only responsible for one and a half muscles there.Its primary role is to provide nerve function to the hand.his means that general damage to the arm or elbow can cause damage to the ulnar nerve. The ulnar nerve is responsible for the pain, or 'funny bone', sensation that occurs if the elbow bone is suddenly struck. Continual pressure on the elbow or inner forearm may cause damage.
Treatment. Ulnar nerve dysfunction is a common form of peripheral neuropathy. It occurs when there is damage to the ulnar nerve, which travels down the arm. The ulnar nerve travels from the upper arm, through this passageway, behind the elbow, to the lower arm, ending in the ring and little fingers.reatment. Ulnar nerve dysfunction is a common form of peripheral neuropathy. It occurs when there is damage to the ulnar nerve, which travels down the arm. The ulnar nerve travels from the upper arm, through this passageway, behind the elbow, to the lower arm, ending in the ring and little fingers.