And the following are kosher in animals: [If] the trachea was punctured or slit. How much may be missing? Rabban Shimon ben Gamliel says: Up to the size of an Italian issar. [If] the skull was cracked but the membrane of the brain was not punctured, [if] the heart was punctured but not into its cavity, [if] the spinal column was broken but the cord was not severed, [if] the liver was removed but an olive-sized piece remains, [if] the omasum and the reticulum were punctured into one another, [if] the spleen was removed, [if] the kidneys were removed, [if] the lower jaw was removed, [if] its uterus was removed, or [if] the lung is shriveled through non- human agency. One whose skin is flayed — R’ Meir declares it fit, and the Sages declare it unfit.