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What acts as a sphincter to prevent reflux of large intestine contents into the ileum?  

Which structure is labeled 3 on Image A?

Name the type of bariatric surgery demonstrated in Image G and Image H:                                       Image G                              Image H

Which pathology is demonstrated in Image I below caused by a flaccid bowel, unable to propel its contents forward. Causes include infection, such as peritonitis or appendicitis.  With this paralytic clinical indication, distended air-filled small bowel is visualized, not Air/Fluid levels.

In small bowel studies, the radiologist may ask for delayed radiographs to follow the barium through the entire large bowel. A barium meal given by mouth usually reaches the rectum within:

Define Scaffolding, More Knowledgeable Other, and Zone of Proximal Development from Vygotsky’s socio-cultural/cognitive theory. Then explain how they relate to each other. (2pts)

Select the reason why there may be fluoroscopy and spot imaging of this GI -Small Bowel combination study in Image D (Remember where the x-tube is for fluoroscopy):

One method of visualizing the small bowel is the Intubation method, sometimes referred to a small bowel enema. With this technique, a _____ is passed through the patient’s nose and moved into the jejunum.

If a patient was scheduled for the O.R., 24 hours after they were going to have a small bowel study, which contrast media would you give them?  

Which aspect of the small intestine possess the smallest diameter?