| POSSUM | Pictures of Standard Syndromes and Undiagnosed Malformations |
|---|---|
| T/LD100 | minimum dose causing 100% deaths or malformations |
| BN | bladder neck; branchial neuritis; bronchial node; brown Norway [rat]; bulimia nervosa |
| BR | barrier reared [experimental animals]; baseline recovery; bathroom; bed rest; bedside rounds; biliru... |
| br | boiling range; brachial; branch; branchial; breath; brother |
| branchial pouches | pharyngeal pouches |
|---|---|
| branchial region | Region containing paired arched columns that bear gills in lower aquatic vertebrates and appear in the embryos of higher vertebrates in comparable form. In higher vertebrates the arches are subsequently modified into structures of the neck and ear. (12 Dec 1998) |
| anal cleft | The sulcus between the buttocks (nates). Synonym: crena ani, anal cleft, crena clunium, gluteal cleft. (05 Mar 2000) |
| brachial cleft cyst | A cervical cyst arising from the persistence of ectodermal brachial cleft (groove) or endodermal pharyngeal pouches. (27 Sep 1997) |
| palate, cleft | An opening in the roof of the mouth, due to a failure of the palatal shelves to come fully together from either side of the mouth and fuse during embryonic development. (12 Dec 1998) |
| Rathke's cleft cyst | An intrasellar or suprasellar cyst lined by cuboidal epithelium derived from remnants of Rathke's pouch. (05 Mar 2000) |
| gingival cleft | A fissure associated with pocket formation and lined by mixed gingival and pocket epithelium. (05 Mar 2000) |
| visceral cleft | Any cleft between two branchial (visceral) arches in the embryo. (05 Mar 2000) |
| median maxillary anterior alveolar cleft | <anatomy> An asymptomatic midline defect of the maxillary anterior ridge; the result of a failure of fusion or development of the lateral halves of the palate. (05 Mar 2000) |
| gluteal cleft | The sulcus between the buttocks (nates). Synonym: crena ani, anal cleft, crena clunium, gluteal cleft. (05 Mar 2000) |
| residual cleft | The remnants of the pituitary diverticulum that occur between the pars distalis and pars intermedia; a distinct lumen is present in some animals, but, in humans, is present only during prenatal development and sometimes in young children. Synonym: residual lumen. (05 Mar 2000) |
| cholesterol cleft | A space caused by the dissolving out of cholesterol crystals in sections of tissue embedded in paraffin. (05 Mar 2000) |
| cleft | A fissure. (05 Mar 2000) |
| cleft hand | A congenital deformity in which the division between the fingers, especially between the third and fourth, extends into the metacarpal region. See: lobster-claw deformity. Synonym: main fourchee, split hand. (05 Mar 2000) |
| cleft lip | <embryology, paediatrics> A genetic disorder that results in the failure of fusion in the upper lip. Also seen commonly in association with cleft palate. (13 Nov 1997) |