The internal organs of the dead person were put into canopic jars. These four jars represented the sons of Horus and each played an important part in the embalming process.

DUAMUTEF

A jackal who guarded the stomach

HAPI

A baboon who guarded the lungs

IMSETY

A human who guarded the liver

QEBEHSENUEF

A falcon who guarded the intestines

The jars were put in a wooden chest which was buried with the mummy.