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.
The point of origin and insertion are at the end of the muscles. When the muscle contracts (goes smaller) the insertion is pulled towards the origin (which is fixed) which creates movement. ...........................t its other end, the insertion is attached to the movable bone. Body movement occurs when muscles contract across joints and their insertion moves towards their origin.Angular movements increase or decrease the angle between two bones.