ileum


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ileum

 [il´e-um]
the distal portion of the small intestine, extending from the jejunum to the cecum.
duplex ileum congenital duplication of the ileum.

il·e·um

(il'ē-ŭm), [TA] Do not confuse this word with ilium.
The third and longest portion of the small intestine, about 12 feet in length in humans (by postmortem measurement), extending from an indistinct junction with the jejunum to the ileocecal opening. Overall, it is distinct from jejunum in being typically smaller in diameter with thinner walls, having smaller and less complex circular folds (plicae circulares), its mesentery having more fat and its arteries (ileal arteries) forming more tiers of arterial arcades with shorter vasa recta.
[L. fr. G. eileō, to roll up, twist]

ileum

/il·e·um/ (il´e-um) the distal portion of the small intestine, extending from the jejunum to the cecum.
duplex ileum  congenital duplication of the ileum.

ileum

(ĭl′ē-əm)
n. pl. il·ea (-ē-ə)
The terminal portion of the small intestine extending from the jejunum to the cecum.

il′e·al adj.

ileum

[il′ē·əm] pl. ilea
Etymology: L, intestine
the lower-third distal portion of the small intestine, extending from the jejunum to the cecum. Internally it has a few small circular folds and numerous clusters of lymphatic tissues. It ends in the right iliac fossa, opening into the medial side of the large intestine. See also ileocecal valve. ileac, ileal, adj.

il·e·um

(il'ē-ŭm) [TA]
The third portion of the small intestine, about 3.6 m (12 ft) in length, extending from the jejunum to the ileocecal opening.
[L.L. bowel, fr. L. ilium, groin, flank, hip]

ileum

The third part of the small intestine lying between the JEJUNUM and the start of the large intestine, the CAECUM. The contents of the ileum are of the consistency of a watery mud and almost all nutrients have been absorbed by about the middle of the ileum.

ileum

that part of the intestine lying between the duodenum and the colon where digestion is completed by enzymes that break down carbohydrates, fats and proteins (see SMALL INTESTINE). The ileum is the main area of the gut for absorption of food.

Ileum

The lowest part of the small intestine, located beyond the duodenum and jejunum, just before the large intestine (the colon).
Mentioned in: Enterostomy, Ostomy

il·e·um

(il'ē-ŭm) [TA]
The third and longest portion of the small intestine, about 12 feet in length in humans.
[L.L. bowel, fr. L. ilium, groin, flank, hip]

ileum

the distal portion of the small intestine, extending from the jejunum to the cecum. See also ileal.

duplex ileum
congenital duplication of the ileum.
ileum-umbilicus fistula
a persistent and patent Meckel's diverticulum.
References in periodicals archive ?
In the present study, a reduction in ATP level and an increase in AMP/ATP ratio were observed in the jejunum and ileum of LPS-challenged broilers.
TCDF treatment was associated with significant down-regulation of Fxr mRNA and its target gene small heterodimer partner (Shp) mRNA in both the ileum and liver of mice (Figure 4F,G).
In a series of 114 infants with jejunoileal atresia, the level of the atresia was the jejunum in 62%, the ileum in 30%, and both the jejunum and ileum in 8%.
Simple sutures of the inlet and outlet injuries of the ileum without proximal intestinal diversion were successful because there was no thermal injury and the ileal wall was healthy.
The hindgut--subdivided into ileum and rectum--is responsible for excretion and water reabsorption from food and primary urine produced by Malpighian tubules; thus contributing to the osmotic control of insects (Chapman 1998).
The effects of Perilla frutescens extract and Vicenin 2 (a compound in this extract) were assayed in rat ileum with or without stimulation with acetylcholine or [Ba.
Biopsy specimens of distal terminal ileum and the proximal resection margin of the ileocolectomy showed only few clusters of GCs.
If the digestion of fat is delayed and fatty acids are able to reach the ileum, the final section of the small intestine, their presence stimulates satiety-inducing hormones.
Once the ileum was intubated, the endoscope was exclusively advanced by pushing.
The new technology provides a controlled release of the plant extract compounds in the gut of livestock animals, which allows a sustained and precise activity along the gastrointestinal tract and thereby increases luminal availability in the ileum and colon of the animal.
Therefore these preliminary studies were conducted to measure the density of opioid receptors in brain tissues, spinal cord, duodenum, ileum and vas deferens.