Assertion: abdomen's organ | /r/HasProperty | retroperitoneal organs
Facets:
value: secondarily
type: DEGREE
Source sentences:
text: Organs that were once suspended within the abdominal cavity by mesentery but migrated posterior to the peritoneum during the course of embryogenesis to become retroperitoneal are considered to be secondarily retroperitoneal organs.
text: However, some organs also grow outside the cavity and are therefore called retroperitoneal organs.