| AS | acetylstrophanthidin; acidified serum; acoustic schwannoma; acoustic stimulation; active sarcoidosis... |
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| DNS | deviated nasal septum; diaphragmatic nerve stimulation; did not show [for appointment]; Doctor of Nu... |
| DRS | descending rectal septum; diagnostic review station; Division of Research Services [NIH]; drowsiness... |
| IAS | immunosuppressive acidic substance; infant apnea syndrome; insulin autoimmune syndrome; interatrial ... |
| IS | ileal segment; immediate sensitivity; immune serum; immunosuppression; impingement syndrome; incenti... |
| Douglas, John | <person> Irish obstetrician, 1777-1850. See: Douglas' spontaneous evolution, Douglas mechanism. (05 Mar 2000) |
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| Douglas' line | A crescentic line, not always clearly defined, which marks the lower limit of the posterior layer of the sheath of the rectus abdominis muscle. Synonym: linea arcuata vaginae musculi recti abdominis, Douglas' line, linea saemicircularis, saemicircular line. (05 Mar 2000) |
| Douglas mechanism | Mechanism of spontaneous evolution in transverse lie; extreme lateral flexion of the vertebral column with birth of the lateral aspect of thorax before the buttocks. (05 Mar 2000) |
| douglas' pouch | A sac or recess formed by a fold of the peritoneum. (12 Dec 1998) |
| Douglas' spontaneous evolution | A mechanism whereby molding of the foetus and impaction of the shoulder and prolapsed arm occurs in transverse lie, allowing vaginal delivery with the lateral aspect of the thorax following the prolapsed shoulder. (05 Mar 2000) |
| Torre, Douglas | <person> U.S. Dermatologist, *1919. See: Torre's syndrome, Muir-Torre syndrome. (05 Mar 2000) |
| absent nasal septum | <radiology> Cocaine, Wegener's (midline lethal granuloma), surgery, trauma, syphilis, sarcoid (12 Dec 1998) |
| alveolar septum | The tissue intervening between two adjacent pulmonary alveoli; it consists of a close-meshed capillary network covered on both surfaces by very thin alveolar epithelial cells, one of the bony partitions between the tooth sockets. Synonym: septum interalveolare, alveolar septum, septal bone. (05 Mar 2000) |
| anterior vein of septum pellucidum | Vein draining the anterior part of the transparent septum; it empties into the superior thalamostriate vein. Synonym: vena septi pellucidi anterior. (05 Mar 2000) |
| aortopulmonary septum | The spiral septum which, during development, separates the truncus arteriosus into a ventral pulmonary trunk and dorsal aorta. See: bulbar ridge. (05 Mar 2000) |
| atrial septum | The wall between the two upper chambers (the right and left atrium) of the heart. (12 Dec 1998) |
| atrioventricular septum | The small part of the membranous septum of the heart just above the septal cusp of the tricuspid valve that separates the right atrium from the left ventricle. Synonym: septum atrioventriculare, pars membranacea septi atriorum. (05 Mar 2000) |
| Bigelow's septum | A bony spur springing from the underside of the neck of the femur above and anterior to the lesser trochanter, adding to the strength of this part of the bone. Synonym: Bigelow's septum. (05 Mar 2000) |
| bony nasal septum | The bones supporting the bony part of the nasal septum; these are the perpendicular plate of the ethmoid, the vomer, the sphenoidal rostrum, the crest of the nasal bones, the frontal spine, and the median crest formed by the apposition of the maxillary and palatine bones. Synonym: septum nasi osseum. (05 Mar 2000) |
| bony part of nasal septum | The major portion of the nasal septum supported by the vomer and the perpendicular plate of the ethmoid. Synonym: pars ossea septi nasi. (05 Mar 2000) |