| rachischisis | 1. Embryologic failure of fusion of vertebral arches and neural tube with consequent exposure of neural tissue at surface; spina bifida cystica with myelocele or myeloschisis. 2. Spinal dysraphism. Origin: G. Rhachis, spine, + schisis, division (05 Mar 2000) |
|---|---|
| rachischisis partialis | Merorrhachischisis Fissure of a portion of the spinal cord. Synonym: mesorrhachischisis, rachischisis partialis. Origin: mero-+ G. Rhachis, spine, + schisis, fissure. (05 Mar 2000) |
| rachischisis totalis | Spina bifida of the entire spinal column. Synonym: araphia, rachischisis totalis. Origin: holo-+ G. Rhachis, spine, + schisis, fissure (05 Mar 2000) |