Postnatal anatomical structure Subdivision of cardinal body part 67504 Unterteilung des Hauptkörperteils Suddivisione della parte di corpo principale fma:fma67504 Principal body part subdivision anatomical structure, each instance of which is a regional part of some cardinal body part; it has as its constitutional part some subdivision of the integument, such that for each instance of cardinal body part the meronymic sum of its cardinal subdivisions constitutes the instance of cardinal body part. Examples: thorax, perineum, back of neck, forearm, hand, phalanx, nose, auricle of ear, scrotum. Subdivision of cardinal body part Subdivisión de la pieza de cuerpo principal Old definition (retires 03-31-2017): Anatomical structure, which is a subdivision of a cardinal body part; it may exclude bones; is demarcated from other subdivisions of the same cardinal body part by anatomical surfaces or lines or topographical references; together with other contiguous subdivisions of the same cardinal body part, it constitutes a cardinal body part.