jejunum
/dʒɪˈdʒuːnəm
/noun (plural jejuna /dʒɪˈdʒuːnə/) Anatomy
The part of the small intestine between the duodenum and ileum.The midgut eventually develops into distal duodenum, jejunum, ileum, caecum, appendix, ascending colon, and proximal two thirds of the transverse colon....
- Small bowel bleeding involving the jejunum and ileum is less common and more difficult to detect scintigraphically.
- Acute cholecystitis may cause the gall bladder to adhere to the adjacent jejunum or duodenum.
Derivatives
jejunal
- The distal duodenum and duodenal jejunal junction is especially susceptible to damage because it is fixed in position.
- Ileal and jejunal duplication cysts that contain ectopic gastric mucosa are also rare causes of false positive studies.
- The patient had 2 notable congenital abnormalities: multiple dissecting pulmonary arterial aneurysms distributed in both lungs and multiple jejunal atresia with apple-peel deformity.
Origin
Mid 16th century: from medieval Latin, neuter of jejunus 'fasting' (because it is usually found to be empty after death).