Barium and Iodine are routinely used for X Ray procedures. Which areas of the body is Barium used to image? Which areas of the body is Iodine used to image? Explain how the Barium or Iodine contrast medium allows imaging of the areas previously identified.

Additional information:

The problem relates to Physics and it discuss about Barium and Iodine's usage in X ray procedures and the areas of body where Barium is used.
Word Count: 200