1 The average worker in an office uses 10,000 sheets of paper annually. 2  It can cost up to 31 times the original cost to send information on paper (printing, copying, postage, storage, filing, recycling, etc.). 3  7.5 billion documents are created and 15 trillion copies are made each year.
Organs are described as retroperitoneal if they are located behind the parietal peritoneum. Retroperitoneal organs include: the kidneys, adrenal glands, ureters, urinary bladder, part of the oesophagus, rectum, ovaries, uterus, aorta and caudal Vena Cava.
Peritoneal is a term referring or relating to a structure in the abdomen known as the peritoneum. Retroperitoneal, therefore, is a term meaning behind, in back of or posterior to the peritoneum, which is a membrane that serves as a lining for the anatomical space in the abdominal cavity.hen there is injury to any of the organs within the retroperitoneal space, pain and various sensations almost always will be felt in the patient's back. For example, in the case of an abdominal aortic aneurysm, a person often will complain of a tearing sensation in his or her back.