bellies — the front or under part of a vertebrate body from the breastbone to the pelvis, containing the abdominal viscera; the abdomen.
ilea — Anatomy. the third and lowest division of the small intestine, extending from the jejunum to the cecum.
villi — Anatomy, Zoology. one of the minute, wormlike processes on certain membranes, especially on the mucous membrane of the small intestine, where they serve in absorbing nutriment.
