Splanchnic is usually used to describe organs in the abdominal cavity.
[1] It is used when describing: The term derives from Ancient Greek: σπλαγχνικός, romanized: splanchnikos, meaning "inward parts,[6][7] organs".
[8] The term "splanchnologia" is used for grouping in Nomina Anatomica,[9] but not in Terminologia Anatomica.
It includes most of the structures usually considered "internal organs", but not all (for example, the heart is excluded).
[9]