Basilar plexus

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Basilar plexus
Gray570.png
The sinuses at the base of the skull
Details
Identifiers
Latin plexus basilaris
TA98 A12.3.05.106
TA2 4866
FMA 50783
Anatomical terminology

The basilar plexus (transverse or basilar sinus) is a dural venous plexus situated upon the clivus and posterior aspect of the dorsum sellae of sphenoid bone. It interconnects the two cavernous sinuses as well as the origins of the petrous sinuses. [1]

It communicates with the anterior vertebral venous plexus.

Clinical significance

The basilar plexus is not typically a clinically significant structure. However, it can sometimes be involved in certain medical conditions, such as a posterior circulation infarction and a cavernous sinus thrombosis. [2]

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<span class="mw-page-title-main">Cavernous sinus</span> Sinus in the human head

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<span class="mw-page-title-main">Inferior petrosal sinus</span>

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The intercavernous sinuses are two in number, an anterior and a posterior, and connect the two cavernous sinuses across the middle line.

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The inferior ophthalmic vein is a vein of the orbit that - together with the superior ophthalmic vein - represents the principal drainage system of the orbit. It begins from a venous network in the front of the orbit, then passes backwards through the lower orbit. It drains several structures of the orbit. It may end by splitting into two branches, one draining into the pterygoid venous plexus and the other ultimately into the cavernous sinus.

<span class="mw-page-title-main">Pterygoid plexus</span>

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<span class="mw-page-title-main">Mastoid foramen</span> Hole in the back of the temporal bone

The mastoid foramen is a hole in the posterior border of the temporal bone. It transmits an emissary vein between the sigmoid sinus and the suboccipital venous plexus, and a small branch of the occipital artery, the posterior meningeal artery to the dura mater.

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<span class="mw-page-title-main">Sphenoparietal sinus</span>

The sphenoparietal sinus is a paired dural venous sinus situated along the posterior edge of the lesser wing of either sphenoid bone. It drains into the cavernous sinus.

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The posteromedial central arteries or paramedian arteries (also are branches of the posterior cerebral artery, and posterior communicating artery. They entering the substance of the brain through the posterior perforated substance. They supply a large portion of the diencephalon as well as some subcortical telencephalic structures.

<span class="mw-page-title-main">Central retinal vein</span> Vein in the retina of the eye

The central retinal vein is a vein that drains the retina of the eye. It travels backwards through the centre of the optic nerve accompanied by the central retinal artery before exiting the optic nerve together with the central retinal artery to drain into either the superior ophthalmic vein or the cavernous sinus.

The cerebrospinal venous system (CSVS) consists of the interconnected venous systems of the brain and the spine.

The marginal sinus is a dural venous sinus surrounding the margin of the foramen magnum inside the skull, accommodated by the groove for marginal sinus. It usually drains into either the sigmoid sinus, or the jugular bulb. It communicates with the basilar venous plexus anteriorly, and the occipital sinus posteriorly ; it may form extracranial communications with the internal vertebral venous plexuses, or deep cervical veins.

References

  1. "plexus veineux basilaire - Dictionnaire médical de l'Académie de Médecine". www.academie-medecine.fr. Retrieved 2024-08-09.
  2. Tubbs, RS; Hansasuta, A; Loukas, M; Louis RG, Jr; Shoja, MM; Salter, EG; Oakes, WJ (October 2007). "The basilar venous plexus". Clinical Anatomy (New York, N.Y.). 20 (7): 755–9. doi:10.1002/ca.20494. PMID   17415743.

PD-icon.svgThis article incorporates text in the public domain from page 660 of the 20th edition of Gray's Anatomy (1918)