__________- pertaining to organs that are closely attatched to the posterior abdominal wall.

__________- pertaining to organs that are closely attatched to the posterior abdominal wall.

• A. Retroperitoneum
• B. Intraperitoneal
• C. Intrathoracic
• D. Subperitoneal

Answer: (A)

The idea being tested is the location of organs that lie against the back of the abdominal cavity. Organs that are closely attached to the posterior abdominal wall reside in the retroperitoneal space. This means they sit behind the peritoneum and aren’t suspended within the peritoneal cavity by a mesentery, which is what distinguishes them from intraperitoneal organs that float inside the abdominal cavity. Examples include the kidneys, adrenal glands, portions of the duodenum, pancreas, aorta, and IVC. The term that describes this location is retroperitoneum (retroperitoneal). The other options don’t fit because intraperitoneal describes organs inside the peritoneal cavity, intrathoracic refers to the chest, and subperitoneal isn’t the standard term used to describe organs closely attached to the posterior abdominal wall.

The idea being tested is the location of organs that lie against the back of the abdominal cavity. Organs that are closely attached to the posterior abdominal wall reside in the retroperitoneal space. This means they sit behind the peritoneum and aren’t suspended within the peritoneal cavity by a mesentery, which is what distinguishes them from intraperitoneal organs that float inside the abdominal cavity. Examples include the kidneys, adrenal glands, portions of the duodenum, pancreas, aorta, and IVC. The term that describes this location is retroperitoneum (retroperitoneal). The other options don’t fit because intraperitoneal describes organs inside the peritoneal cavity, intrathoracic refers to the chest, and subperitoneal isn’t the standard term used to describe organs closely attached to the posterior abdominal wall.