venous sinus

venous sinus
a wide channel containing blood; does not have the coating of an ordinary blood vessel
Syn: ↑sinus
Hypernyms: ↑duct, ↑epithelial duct, ↑canal, ↑channel

* * *

a. : a large vein or passage (as in the dura mater) for venous blood
2. : one of the ill-defined spaces among the tissues of many invertebrates that is functionally equivalent to a vertebrate vein

Useful english dictionary. 2012.

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  • venous sinus — n 1) a large vein or passage (as the canal of Schlemm) for venous blood 2) SINUS VENOSUS * * * 1. a large vein or channel for the circulation of venous blood, such as one of the sinuses of the dura mater. 2. s. venosus (def. 1) …   Medical dictionary

  • venous sinus — ▪ anatomy       in human anatomy, any of the channels of a branching complex sinus network that lies between layers of the dura mater, the outermost covering of the brain, and functions to collect oxygen depleted blood. Unlike veins, these… …   Universalium

  • Cerebral venous sinus thrombosis — Classification and external resources Dural veins ICD 10 I63.6, I …   Wikipedia

  • venous sinus of sclera — s. venosus sclerae …   Medical dictionary

  • sinus venosus sclerae — sinus venosus scle·rae sklē rē n CANAL OF SCHLEMM * * * [TA] venous sinus of sclera: a circular channel at the junction of the sclera and cornea, which is the main pathway for elimination of aqueous humor from the eye. Called also Schlemm canal …   Medical dictionary

  • 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

  • sinus venosus — si·nus ve·no·sus .sī nəs vi nō səs n an enlarged pouch that adjoins the heart, is formed by the union of the large systemic veins, and is the passage through which venous blood enters the heart in lower vertebrates and in embryos of higher forms… …   Medical dictionary

  • sinus cavernosus — noun either of a pair of large venous sinuses in the cranial cavity • Syn: ↑cavernous sinus • Hypernyms: ↑venous sinus, ↑sinus …   Useful english dictionary

  • sinus rectus — noun an unpaired sinus of the dura mater • Syn: ↑straight sinus, ↑tentorial sinus • Hypernyms: ↑venous sinus, ↑sinus …   Useful english dictionary

  • sinus transversus — noun a paired dural sinus; terminates in the sigmoid sinus • Syn: ↑transverse sinus • Hypernyms: ↑venous sinus, ↑sinus …   Useful english dictionary

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