In the first use of these catheters in humans, each catheter was specifically shaped to match the size and shape of the aorta of the subject. His work was documented in 1967, and by 1968 the Judkins catheters were manufactured in a limited number of fixed tip shapes.
Cut of beef. Cuts of beef are first divided into primal cuts, pieces of meat initially separated from the carcass during butchering. These are basic sections from which steaks and other subdivisions are cut. The term primal cut is quite different from prime cut, used to characterize cuts considered to be of higher quality.
The difference between chuck roast and chuck steak is simply the cut. Chuck is an inexpensive beef that comes from the muscle between the neck and shoulder blade of the beef cattle. That's why other names for chuck roast include blade pot roast. Roasts and steaks are most popular cuts of chuck.