Anatomy
jejunum Audio
je·ju·num [ ji-joo-nuhm ]
Subclass of:
Lower Gastrointestinal Tract; Intestines, Small
Etymology:
Latin jejunus = fasting or empty
Galen purportedly named this second part of the small intestine nestis = fasting, because he believed it was always found empty after death. Nestis was translated into the Latin jejunus.
Definitions related to jejunum:
  • Portion of the small intestine between the duodenum and the ileum.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • The middle portion of the SMALL INTESTINE, between DUODENUM and ILEUM. It represents about 2/5 of the remaining portion of the small intestine below duodenum.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • The portion of the small intestine that extends from the duodenum to the ileum.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • The section of the small intestine between the duodenum and the ileum.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.