<P> Sweetbread is a culinary name for the thymus (also called throat, gullet, or neck sweetbread) or the pancreas (also called heart, stomach, or belly sweetbread), especially of calf (ris de veau) and lamb (ris d'agneau), and, less commonly, of beef and pork . The "heart" sweetbreads are more spherical in shape, and surrounded symmetrically by the "throat" sweetbreads, which are more cylindrical in shape . </P> <P> Various other glands used as food may also sometimes be called "sweetbreads," including the parotid gland ("cheek" or "ear" sweetbread), the sublingual glands ("tongue" sweetbreads or "throat bread") as well as ovary and testicles (cf . Rocky Mountain oyster, prairie oyster, or lamb fries). </P>

Where is the thymus gland in a cow