Healthy large intestine, coloured double contrast barium enema X-ray. The large intestine (colon, red) is the final part of the digestive system. It is divided into four sections the ascending (left of centre), transverse (centre), descending (right of centre) and sigmoid colon (at lower centre). It receives digested food from the small intestine (not seen), which joins it at lower left. The colon absorbs water from the digested food which arrives in a liquid form. The product of this is faeces, which are passed to the rectum (bottom centre) and stored for excretion. A double contrast barium enema is a diagnostic technique in which a solution of radio-opaque barium salts are introduced through the anus, and then air is used to inflate the...
About the Artist -
Science Photo Library was founded in 1981 by Michael Marten, one of the authors of "Worlds Within Worlds", a book exploring different ways to observe the universe - from electron micrographs, to images of earthrise taken from the Apollo spacecraft. When Marten started receiving requests for the beautiful images in the book, he had an idea of setting up Science Photo Library.
Since then, Science Photo Library has continued to work alongside world acclaimed photographers and the leading science and medical experts to provide a central source of the best science and specialist imagery available. Although the collection started with scientific images, it has grown to encompass all aspects of science and their impact on everyday life.
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