Preparation of flexible models of hollow gastrointestinal organs.

Flexible models of hollow gastrointestinal organs can be easily prepared by coating air-dried organs with a commercially available clear plastic compound. The plastic infiltrates the full thickness of organ walls to support and protect internal as well as external structures. Models are flexible, resistant to fluids, and lightweight. This plasticizing technique is particularly useful for the preservation and study of large animal gastrointestinal tracts.