Ileum
The ileum is the final section of the small intestine in most higher vertebrates, including mammals, reptiles, and birds. In fish, the divisions of the small intestine are not as clear and the terms posterior intestine or distal intestine may be used instead of ileum.
The ileum follows the duodenum and jejunum and is separated from the cecum by the ileocecal valve (ICV). In humans, the ileum is about 2–4 m long, and the pH is usually between 7 and 8 (neutral or slightly alkaline).
Ileum is derived from the Greek word eilein, meaning “to twist up tightly.”
Ilium (noun)
The upper and widest of the three bones that make up each side of the hipbone and pelvis.
Ilium (noun)
The ileum, part of the small intestine.
Ileum (noun)
The last, and usually the longest, division of the small intestine; the part between the jejunum and large intestine.
Ilium (noun)
alternative name for Troy, especially the 7th-century BC Greek city
Ileum (noun)
the third portion of the small intestine, between the jejunum and the caecum.