An organ that is located within the body cavity (or in its extension, in the scrotum); it consists of organ parts that are embryologically derived from endoderm, splanchnic mesoderm or intermediate mesoderm; together with other organs, the viscus constitutes the respiratory, gastrointestinal, urinary, reproductive and immune systems, or is the central organ of the cardiovascular system. Examples: heart, lung, esophagus, kidney, ovary, spleen.

An internal organ of the body; especially: one (as the heart, liver, or intestine) located in the great cavity of the trunk proper.[AAO]

general anatomical term in FMA. Note that we place the MA class here temporarily, although properly systems should be distinguished from organs.

visceral organ system, visceral organ

uberon

splanchnic tissue, visceral tissue, viscera

UBERON:0002075

http://purl.obolibrary.org/obo/uberon.owl, http://purl.obolibrary.org/obo/cl.owl