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.
What is ulnar nerve entrapment? Ulnar nerve neuropathy due to ulnar nerve entrapment is often a painful disorder of the outer side of the arm and hand near the little finger, caused by pressure on the ulnar nerve in your arm. Causes of ulnar nerve entrapment. Ulnar nerve neuropathy can be a condition of nerve entrapment. The ulnar nerve can be constricted as it passes through the wrist or elbow. The ulnar nerve transmits electrical signals to muscles in the forearm and hand.