What does the combining form "peritone/o" primarily refer to?

The combining form "peritone/o" primarily refers to the peritoneum, which is the membrane lining the abdominal cavity and covering the abdominal organs. This terminology is significant in medical settings, particularly in the context of surgeries and diseases affecting the abdominal area. Understanding that "peritone/o" relates specifically to this anatomical structure helps clinicians communicate about conditions like peritonitis or surgeries such as peritoneal dialysis. Other options, while they represent various medical terms, do not connect to the concept of the peritoneum, highlighting the importance of accurate terminology in healthcare.