You can find out when most of the Treadway families immigrated to the United States. You can focus your search to immigration records dating from that era. Immigration records can tell you an ancestor's name, ship name, port of departure, port of arrival and destination. View all Treadway immigration records >.
It can be divided into the upper arm (brachium) which extends from the shoulder to the elbow, the forearm (antebrachium) which extends from the elbow to the hand, and the hand (manus). Anatomically the shoulder girdle with bones and corresponding muscles is by definition a part of the arm.
1 Triceps brachii: This muscle at the back of the upper arm extends the arm and stabilizes the elbow when the hand is used for fine movements. 2  Brachioradialis: A forearm muscle that flexes the arm at the elbow.3  Anconeus: This muscle helps extend the forearm at the elbow.lbow muscles are commonly referred to as flexors or extensors, depending on how they affect elbow movement. Extensors are on the inside of the arm and help extend the arm outward. Flexors are at the back of the elbow and pull it closer to the body by bending the elbow.