Sweetbreads or ris are culinary names for the thymus (also called throat, gullet, or neck sweetbread) or the pancreas (also called heart, stomach, or belly sweetbread) especially of the calf (ris de veau) and lamb (ris d'agneau) (although beef and pork sweetbreads are also eaten). Various other glands used as food are also called 'sweetbreads', including the parotid gland ("cheek" or "ear" sweetbread), the sublingual glands ("tongue" sweetbreads or "throat bread"), and testicles (cf. Rocky Mountain oyster) or Lamb Fries.