- the congenital absence, or the pathological closure, of an opening, passage, or cavity.
Origin of atresia
Examples from the Web for atresia
Perhaps in some cases of atresia there may be a secondary obliteration of a previously formed opening.The Anatomy of the Human Peritoneum and Abdominal Cavity
George. S. Huntington
Atresia was in no instance great enough to account for the complete loss of enlarged follicles.
Atresia etiam consequitur vulnera et inflammationes morborum, ut diphtheritis et scarlatina.Essays In Pastoral Medicine
Sometimes there is a complete closure or atresia of the lower part of the colon.The Mother and Her Child
William S. Sadler
- absence of or unnatural narrowing of a body channel
Word Origin and History for atresia
"occlusion of a natural passage in the body," 1807, from Modern Latin atresia, from Greek atretos "not perforated," from a-, privative prefix, + tresis "perforation," from PIE *tere- "to rub, turn," with derivatives referring to boring and drilling (see throw (v.)).
- The congenital absence or closure of a normal body orifice or tubular passage such as the anus, intestine, or external ear canal.
- The degeneration and resorption of one or more ovarian follicles before maturation.