Visceral surface is a term that is used to describe the internal or organ-facing surface of an animal's body cavity. Some synonyms for visceral surface include the internal surface, the organ surface, and the inner surface. Other terms that could be used in place of visceral surface include the serosal surface, the internal face, and the endocavitary surface. These terms are all used to describe the same aspect of an animal's anatomy, and they are all useful for describing the internal structure of an organism. Whether you are studying anatomy or simply interested in understanding more about the internal workings of animals, these terms are important to know.