| DRS | descending rectal septum; diagnostic review station; Division of Research Services [NIH]; drowsiness... |
|---|---|
| IS | ileal segment; immediate sensitivity; immune serum; immunosuppression; impingement syndrome; incenti... |
| IVS | inappropriate vasopressin secretion; intervening sequence; interventricular septum; intervillous spa... |
| LS | lateral suspensor; left sacrum; left septum; left side; legally separated; leiomyosarcoma; length of... |
| RS | radioscaphoid; random sample; rating schedule; Raynaud syndrome; recipient's serum; rectal sinus; re... |
| mobile part of nasal septum | The anterior movable part of the nasal septum formed by the medial crus of the greater alar cartilage on each side. Synonym: pars mobilis septi nasi, septum mobile nasi. (05 Mar 2000) |
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| comblike septum | Septum pectiniforme, the anterior portion of the septum penis which is broken by a number of slitlike perforations. Synonym: comblike septum. (05 Mar 2000) |
| muscular part of interventricular septum of heart | The thick muscular portion which comprises most of the interventricular septum of the heart. Synonym: pars muscularis septi interventricularis cordis, septum musculare ventriculorum. (05 Mar 2000) |
| crural septum | The delicate fibrous membrane that closes the femoral ring at the base of the femoral canal. Synonym: septum femorale, Cloquet's septum, crural septum. (05 Mar 2000) |
| posterior vein of septum pellucidum | Vein draining the posterior part of the transparent septum; it empties into the superior thalamostriate vein. Synonym: vena septi pellucidi posterior. (05 Mar 2000) |
| precommissural septum | See: septal area. (05 Mar 2000) |
| hanging septum | The deformity caused by an abnormal width of the septal portion of the alar cartilages. (05 Mar 2000) |
| heart septum | The thin membranous structure between the two heart atria or the thick muscular structure between the two heart ventricles. (12 Dec 1998) |
| proximal spiral septum | See: spiral septum. (05 Mar 2000) |
| scrotal septum | An incomplete wall of connective tissue and nonstriated muscle (dartos fascia) dividing the scrotum into two sacs, each containing a testis. Synonym: septum scroti. (05 Mar 2000) |
| septum | A dividing wall or partition, a general term for such a structure. The term is often used alone to refer to the septal area or to the septum pellucidum. (18 Nov 1997) |
| septum accessorium | An additional ridge forming the lower border of the limbus fossae ovalis. (05 Mar 2000) |
| septum, atrial | The wall between the two upper chambers (the right and left atrium) of the heart. (12 Dec 1998) |
| septum atrioventriculare | 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) |
| septum bulbi urethrae | A fibrous septum in the interior of the bulb of the penis which divides it into two hemispheres. (05 Mar 2000) |