| plexus venosus | A vascular network formed by numerous anastomoses between veins. Synonym: plexus venosus. (05 Mar 2000) |
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| plexus venosus areolaris | areolar venous plexus |
| plexus venosus canalis hypoglossi | A small venous network around the hypoglossal nerve, connecting with the occipital sinus, inferior petrosal sinus, and internal jugular vein. Synonym: plexus venosus canalis hypoglossi, circellus venosus hypoglossi, rete canalis hypoglossi. (05 Mar 2000) |
| plexus venosus caroticus internus | A venous network around the internal carotid artery in the carotid canal of the temporal bone, connecting with the cavernous sinus and internal jugular vein. Synonym: plexus venosus caroticus internus, internal carotid (nervous) plexus, plexus caroticus internus. (05 Mar 2000) |
| plexus venosus foraminis ovalis | A venous network around the mandibular nerve connecting the cavernous sinus and the pterygoid plexus. Synonym: plexus venosus foraminis ovalis, rete foraminis ovalis. (05 Mar 2000) |
| plexus venosus prostaticus | A venous plexus, arising chiefly from the dorsal vein of the penis, situated below the base of the bladder at the sides of the prostate. See: prostaticovesical plexus. Synonym: plexus venosus prostaticus, plexus pudendalis, Santorini's labyrinth. (05 Mar 2000) |
| plexus venosus rectalis | A venous plexus resting upon the posterior and lateral walls of the rectum; it drains into the superior rectal vein to the portal, the middle rectal to the internal iliac and the inferior rectal to the internal pudendal. Synonym: plexus venosus rectalis, haemorrhoidal plexus. (05 Mar 2000) |
| plexus venosus sacralis | A venous plexus on the pelvic surface of the sacrum, formed by tributaries to the lateral sacral veins. Synonym: plexus venosus sacralis. (05 Mar 2000) |
| plexus venosus suboccipitalis | The extensive plexus of veins in the suboccipital region. Synonym: plexus venosus suboccipitalis. (05 Mar 2000) |
| plexus venosus uterinus | The plexiform veins that lie along the sides of the uterus in the broad ligament. Synonym: plexus venosus uterinus. (05 Mar 2000) |
| plexus venosus vaginalis | The plexus of veins that surrounds the vagina. Synonym: plexus venosus vaginalis. (05 Mar 2000) |
| plexus venosus vertebralis | Any of four interconnected venous networks surrounding the vertebral column; anterior external vertebral venous plexus, the small system around the vertebral bodies; posterior external vertebral venous plexus, the extensive system around the vertebral processes; anterior internal vertebral venous plexus, the system running the length of the vertebral canal anterior to the dura; posterior internal vertebral venous plexus, the system running the length of the vertebral canal posterior to the dura; the latter two constitute the epidural venous plexus. Synonym: plexus venosus vertebralis, Batson's plexus, vertebral venous plexus. (05 Mar 2000) |
| plexus venosus vesicalis | A plexus of veins around the fundus and sides of the bladder. Synonym: plexus venosus vesicalis, venous plexus of bladder. (05 Mar 2000) |
| pulsus venosus | A pulsation occurring in the veins, especially the internal jugular vein. Synonym: pulsus venosus. (05 Mar 2000) |
| sinus venosus | A cavity at the caudal end of the embryonic cardiac tube in which the veins from the intra-and extraembryonic circulatory arcs unite; in the course of development it forms the portion of the right atrium known in adult anatomy as the sinus of the vena cava. Synonym: saccus reuniens. Sinus venosus sclerae, the vascular structure encircling the anterior chamber of the eye and through which the aqueous is returned to the blood circulation. Synonym: circular sinus, Fontana's canal, Lauth's canal, Schlemm's canal, sinus circularis, venous sinus of sclera. (05 Mar 2000) |