Straight sinus — Infobox Vein Name = Straight sinus Latin = sinus rectus GraySubject = 171 GrayPage = 655 Caption = Dural veins (Straight sinus labeled as SIN. RECTUS at center right.) Caption2 = Dura mater and its processes exposed by removing part of the right… … Wikipedia
straight sinus — noun an unpaired sinus of the dura mater • Syn: ↑tentorial sinus, ↑sinus rectus • Hypernyms: ↑venous sinus, ↑sinus * * * noun : a venous sinus of the brain formed by junction of the great cerebral vein and inferior sagittal sinus and terminating… … Useful english dictionary
sinus of the dura mater — n any of numerous venous channels (as the sagittal sinuses, straight sinus, and transverse sinuses) that are situated between the two layers of the dura mater, that have no valves, and that drain blood from the brain and the bones forming the… … Medical dictionary
sinus transversus durae matris — [TA] transverse sinus of dura mater: either of two large sinuses of the dura mater that begin in a variable fashion at the confluence of the sinuses near the internal occipital protuberance. Each follows the attached margin of the tentorium… … Medical dictionary
sinus rectus — noun an unpaired sinus of the dura mater • Syn: ↑straight sinus, ↑tentorial sinus • Hypernyms: ↑venous sinus, ↑sinus … Useful english dictionary
sinus rectus — [TA] straight sinus: one of the sinuses of the dura mater, situated in the line of union of the cerebral falx and the cerebellar tentorium, formed by the junction of the great cerebral vein and the inferior sagittal sinus, and ending in a… … Medical dictionary
sinus sagittalis inferior — [TA] inferior sagittal sinus: one of the sinuses of the dura mater; it is small and situated in the posterior half of the lower concave border of the falx cerebri, and it opens into the upper end of the straight sinus. Called also inferior… … Medical dictionary
Sinus (anatomy) — Sinus is Latin for bay , pocket , curve , or bosom . In anatomy, the term is used in various contexts. A sinus is a sack or cavity in any organ or tissue, or an abnormal cavity or passage caused by the destruction of tissue. In common usage,… … Wikipedia
sinus — 1. [TA] A channel for the passage of blood or lymph, without the coats of an ordinary vessel; e.g., blood passages in the gravid uterus or those in the cerebral meninges. 2. [TA] A cavity or … Medical dictionary
Inferior sagittal sinus — Infobox Vein Name = Inferior sagittal sinus Latin = sinus sagittalis inferior GraySubject = 171 GrayPage = 655 Caption = Dural veins (Inferior sagittal sinus labeled as SIN. SAGITTALIS INF. at upper right.) Caption2 = Dura mater and its processes … Wikipedia