| groove for superior sagittal sinus | The groove in the midline of the inner table of the calvaria lodging the superior sagittal sinus. Synonym: sulcus sinus sagittalis superioris, sagittal groove, sagittal sulcus, superior longitudinal sulcus. (05 Mar 2000) |
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| superior sagittal sinus | An unpaired dural venous sinus in the sagittal groove, beginning at the foramen caecum and terminating at the confluence of sinuses where it merges with the straight sinus; receives the superior cerebral veins and has lateral extensions, the lateral venous lacunae. Synonym: sinus sagittalis superior, superior longitudinal sinus. Tarsal sinus, a hollow or canal formed by the groove of the talus and the interosseous groove of the calcaneus which is occupied by the interosseous talocalcaneal ligament. Synonym: sinus tarsi, tarsal canal. (05 Mar 2000) |
| inferior sagittal sinus | An unpaired dural venous sinus in the lower margin of the falx cerebri, running parallel to the superior sagittal sinus and merging with the great cerebral vein to form the the straight sinus. Synonym: sinus sagittalis inferior, inferior longitudinal sinus. (05 Mar 2000) |
| cavernous sinus thrombosis | <neurology> A blood clot within the cavernous sinus (a sinus cavity which is bordered by the sphenoid bone and the temporal bone). This condition produces a syndrome called cavernous sinus syndrome. (16 Mar 1998) |
| sinus thrombosis | Formation of a clot in a cerebral venous sinus. (12 Dec 1998) |
| right sagittal fissure | A sagittal groove on the undersurface of the liver formed by the fossa vesicae felleae anteriorly and the sulcus venae cavae posteriorly. (05 Mar 2000) |
| posterior sagittal diameter | Distance from the sacrococcygeal junction to the middle of an imaginary line running between the left and right ischial tuberosities. (05 Mar 2000) |
| sagittal | 1. Of or pertaining to an arrow; resembling an arrow; furnished with an arowlike appendage. 2. <anatomy> Of or pertaining to the sagittal suture; in the region of the sagittal suture; rabdoidal; as, the sagittal furrow, or groove, on the inner surface of the roof of the skull. In the mesial plane; as, a sagittal section of an animal. <anatomy> Sagittal suture, the suture between the two parietal bones in the top of the skull. Synonym: rabdoidal suture, and interparietal suture. Origin: L. Sagitta an arrow: cf. F. Saguttal. Source: Websters Dictionary (01 Mar 1998) |
| sagittal axis | In dentistry, the line in the frontal plane around which the working side condyle rotates during mandibular movement. (05 Mar 2000) |
| sagittal border of parietal bone | The medial border of the parietal bone entering into the sagittal suture. Synonym: margo sagittalis ossis parietalis. (05 Mar 2000) |
| sagittal crest | A prominent ridge along the sagittal suture of the skull, present in some animals as a result of temporal muscle development. (05 Mar 2000) |
| sagittal fontanel | An occasional fontanel-like defect in the sagittal suture in the newborn. Synonym: Gerdy's fontanel. (05 Mar 2000) |
| sagittal groove | The groove in the midline of the inner table of the calvaria lodging the superior sagittal sinus. Synonym: sulcus sinus sagittalis superioris, sagittal groove, sagittal sulcus, superior longitudinal sulcus. (05 Mar 2000) |
| sagittal line | Any line parallel to the midline, indicating a sagittal plane. (05 Mar 2000) |
| sagittal plane | <dentistry> The longitudinal vertical plane that divides the mouth into two halves (left and right.) (08 Jan 1998) |