One of the reasons Britain became rich was because the Industrial Revolution (factories and such) got off the ground there sooner. Britain had a large navy, and many colonies in other parts of the world, such as India, and Rhodesia.
Full Muscles of the Arm and Hand Description. The muscles of the upper arm are responsible for the flexion and extension of the forearm at the elbow joint. Flexion of the forearm is achieved by a group of three muscles â the brachialis, biceps brachii, and brachioradialis.uscles of the Arm and Hand. The muscles of the arm and hand are specifically designed to meet the bodyâs diverse needs of strength, speed, and precision while completing many complex daily tasks.
While Your Wrist Is in a Cast or a Sling. While your bone heals, your arm will be in a cast or a sling to keep your arm still and promote healing. During that time, it will be important that your arm not get too stiff, weak, or swollen. Depending on the amount of activity that is allowed for your type of fracture, your physical therapist will prescribe exercises to keep your shoulder, elbow, and fingers moving while you are in the cast or sling.