Abraham Lincoln: The Man and the Myth. Fort Worth: Harcourt College Publishers, 2000. Bartlett, D. W. (David W.). Life and Public Services of Hon. Abraham Lincoln, With a Portrait on Steel, to Which is Added a Biographical Sketch of Hon. Hannibal Hamlin.
Two special motions produced by the muscles of the forearm are the supination (anterior rotation) and pronation (posterior rotation) of the forearm and hand. Supination is produced by the biceps brachii of the upper arm and the supinator muscle of the forearm.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.
In formal usage, the term arm only refers to the structures from the shoulder to the elbow, explicitly excluding the forearm, and thus upper limb and arm are not synonymous.ost of the large number of muscles in the forearm are divided into the wrist, hand, and finger extensors on the dorsal side (back of hand) and the ditto flexors in the superficial layers on the ventral side (side of palm). These muscles are attached to either the lateral or medial epicondyle of the humerus.