Ritz argued that the engrossed copy of the Declaration was signed by Congress on July 4, as Jefferson, Adams, and Franklin had stated, and that it was implausible that all three men had been mistaken. Ritz believed that McKean's testimony was questionable, and that historians had misinterpreted the July 19 resolution.
The seven general types of skeletal muscle. The origin of a muscle is the bone, typically proximal, which has greater mass and is more stable during a contraction than a muscle's insertion. For example, with the latissimus dorsi muscle, the origin site is the torso, and the insertion is the arm.
All muscles exert their force by pulling between at least two points of attachment. The movement that results from contraction is called the action of the muscle. Typically, one attachment remains stationary and is called the origin and the other attachment moves and is called the insertion. Almost all muscles cross at least one joint (moveable connection between two bones) and cause an action across that joint.