#colon  the part of the large intestine between the cecum and the rectum; it extracts moisture from food residues before they are excreted
  supertype:  large_intestine__largeintestine  beginning with the cecum and ending with the rectum; includes the cecum and the colon and the rectum; extracts moisture from food residues which are later excreted as feces
  part:  sigmoid_vein
  subtype:  megacolon  an abnormal enlargement of the colon; can be congenital (as in Hirschsprung's disease) or acquired (as when children refuse to defecate)
  subtype:  transverse_colon  the part of the large intestine that extends across the abdominal cavity and joins the ascending to the descending colon
  subtype:  ascending_colon__ascendingcolon  the part of the large intestine that ascends from the cecum to the transverse colon
  subtype:  descending_colon  the part of the large intestine that descends from the transverse colon to the sigmoid colon
  subtype:  sigmoid_colon__sigmoidcolon__sigmoid_flexure__sigmoidflexure  the s-shaped curve between the descending colon and the rectum

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