title: Developmental variations of the villi along the ileum in newly hatched and adult pigeons. A scanning electron microscopic study.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D010856:Columbidae / Q000033:anatomy & histology*; D007082:Ileum / Q000033:anatomy & histology* / Q000254:growth & development; D007413:Intestinal Mucosa / Q000254:growth & development / Q000648:ultrastructure*; D008855:Microscopy, Electron, Scanning; D009024:Morphogenesis