| OC | obstetrical conjugate; occlusocervical; office call; on call; only child; optic chiasma; oral contra... |
|---|---|
| OCBF | outer cortical blood flow |
| OEE | osmotic erythrocyte enrichment; outer enamel epithelium |
| OHC | occupational health center; outer hair cell |
| O-I | outer and inner |
| internal base of skull | <anatomy> The interior aspect of the skull base on which the brain rests; the floor of the cranial cavity. See: base of skull. Synonym: basis cranii interna. (05 Mar 2000) |
|---|---|
| open skull fracture | A fracture with laceration of overlying scalp and/or mucous membrane. Synonym: compound skull fracture. (05 Mar 2000) |
| tower skull | A type of craniosynostosis in which there is premature closure of the lambdoid and coronal sutures, resulting in an abnormally high, peaked, or conically shaped skull. Synonym: acrocephalia, acrocephaly, hypsicephaly, hypsocephaly, oxycephalia, steeple skull, tower skull, turricephaly. Origin: G. Oxys, pointed, + kephale, head (05 Mar 2000) |
| expressed skull fracture | A fracture with outward displacement of a part of the cranium. (05 Mar 2000) |
| external base of skull | External aspect of the base of skull Synonym: norma basilaris, basis cranii externa, norma inferior, norma ventralis. (05 Mar 2000) |
| lacunar skull | <radiology> Also known as: craniolacunia, mesenchymal dysplasia, may appear normal after several yrs associated with: Chiari malformation (almost always !), myelomeningocele, encephalocele in contrast, increased intracranial pressure has: beaten-silver appearance, closed sutures, with or without abnormal skull size (Lueckenschaedel) (12 Dec 1998) |
| lateral skull radiograph | A true lateral projection radiograph of facial bones and calvarium, showing bone structures and air-containing passages. (05 Mar 2000) |
| linear skull fracture | A skull fracture resembling a line. (05 Mar 2000) |
| longitudinal arc of skull | The line carried over the skull in the midline from the nasion to the opisthion. (05 Mar 2000) |