MARC PHARES / SCIENCE PHOTO LIBRARY MARC PHARES / SCIENCE PHOTO LIBRARY
Artistic interpretation of a cross-section of an area of the colon afflicted with Irritable Bowel Syndrome (IBS). IBS is also known as spastic colon or irritable colon syndrome, and is characterized by abdominal pain and cramps, constipation and diarrhea. Serotonin seems to play an important role in IBS.
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