Abdominal x-ray enema through the rectum. The term "barium enema" usually refers to a lower gastrointestinal series, although enteroclysis (an upper gastrointestinal series) is often called a small bowel barium enema. Abdominal x-ray An abdominal x-ray is an x-ray of the abdomen. It is sometimes abbreviated to AXR, or KUB (for kidneys, ureters, and urinary bladder). In children, abdominal x-ray is indicated in the acute setting: Yet, CT scan is the best alternative for diagnosing intra-abdominal injury. For acute abdominal pain in adults, an abdominal x-ray has a low sensitivity and accuracy in general, as well as for specific conditions such as
Rectum the dentate line, again depending upon which definition is used. In humans, the rectum is followed by the anal canal which is about long, before the gastrointestinal tract terminates at the anal verge. The word rectum comes from the Latin " ", meaning "straight intestine". The rectum is a part of the lower gastrointestinal tract. The rectum is a continuation of the sigmoid colon, and connects to the anus. The rectum follows the shape of the sacrum and ends in an expanded section called the rectal ampulla, where feces are stored before their release via the anal canal. An ampulla