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Encyclopedia > Cavernous sinus
Vein: Cavernous sinus
Oblique section through the cavernous sinus. (Cavernous sinus labeled at upper right.)
The sinuses at the base of the skull. (Cavernous sinus visible at center left, labeled in very small print.)
Latin sinus cavernosus
Gray's subject #171 658
Source middle cerebral vein, sphenoparietal sinus, superior ophthalmic vein
Dorlands/Elsevier s_12/12738628

The cavernous sinus (or lateral sellar compartment) is a large collection of thin-walled veins creating a cavity bordered by the sphenoid bone and the temporal bone of the skull. Image File history File links Gray571. ... Image File history File links Size of this preview: 499 × 600 pixelsFull resolution (500 × 601 pixel, file size: 108 KB, MIME type: image/png) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Wikipedia:Grays Anatomy images with... Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... The middle cerebral vein (superficial Sylvian vein) begins on the lateral surface of the hemisphere, and, running along the lateral cerebral fissure, ends in the cavernous or the sphenoparietal sinus. ... The cavernous sinus receives the superior ophthalmic vein through the superior orbital fissure, some of the cerebral veins, and also the small sphenoparietal sinus, which courses along the under surface of the small wing of the sphenoid. ... Superior ophthalmic vein - Wikipedia, the free encyclopedia /**/ @import /skins-1. ... Elseviers logo. ... In the circulatory system, a vein is a blood vessel that carries blood toward the heart. ... The sphenoid bone (from Greek sphenoeides, wedgelike) is a bone situated at the base of the skull in front of the temporals and basilar part of the occipital. ... The temporal bones (os temporales) are situated at the sides and base of the skull. ... It has been suggested that temporal fenestra be merged into this article or section. ...

Contents

Contents

Each cavernous sinus (one for each hemisphere of the brain) contains the following:

One mnemonic for remembering the contents is "OTOM CAT"[1] The oculomotor nerve () is the third of twelve paired cranial nerves. ... The fourth of twelve cranial nerves, the trochlear nerve controls the function of the superior oblique muscle, which rotates the eye away from the nose and also moves the eye downward. ... The Ophthalmic nerve is one of the three branches of the trigeminal nerve, one of the cranial nerves. ... The trigeminal nerve is the fifth (V) cranial nerve, and carries sensory information from most of the face, as well as motor supply to the muscles of mastication (the muscles enabling chewing), tensor tympani (in the middle ear), and other muscles in the floor of the mouth, such as the... The Maxillary nerve is one of the three branches of the trigeminal nerve, one of the cranial nerves. ... The carotid artery is a major artery of the head and neck that supplies blood to the head and neck. ... The Cavernous Portion of internal carotid artery. ... The sixth of twelve cranial nerves, the abducens nerve is a motor nerve that innervates the lateral rectus muscle and therefore controls each eyes ability to abduct (move away from the midline). ...



It receives tributaries from

    • Superior and inferior opthalmic viens
    • Superior parietal sinus
    • Superior and middle cerebral veins

The viens of exit are to the superior and inferior petrosal sinuses as well as via the emissary veins through the foramina of the skull. There are also connections with the pterygoid plexus of viens via inferior opthalmic vein, deep facial vein and emissary veins.


Clinical significance

It is the only anatomic location in the body in which an artery travels completely through a venous structure. Section of an artery For other uses, see Artery (disambiguation). ...


If the internal carotid artery ruptures within the cavernous sinus, an arteriovenous fistula is created. Cavernous sinus syndrome may result from mass effect from a tumor and cause ophthalmoplegia (from compression of the oculomotor nerve, trochlear nerve, and abducens nerve), ophthalmic sensory loss (from compression of the ophthalmic nerve), and maxillary sensory loss (from compression of the maxillary nerve). An arteriovenous fistula is an abnormal connection or passageway between an artery and a vein. ... Ophthalmoparesis is a physical finding in certain neurologic illnesses. ...


Additional images

See also

The dural venous sinuses (also called dural sinuses or cerebral sinuses) are venous channels found between layers of dura mater in the brain. ...

References

  1. ^ Mnemonic at medicalmnemonics.com 1094

Wikiquote has a collection of quotations related to: English mnemonics A mnemonic (pronounced in RP, [nɪmɑnɪk] in GA) is a memory aid, and most serve an educational purpose. ...

External links


  Results from FactBites:
 
CAVERNOUS SINUS THROMBOSIS (679 words)
Cavernous sinus thrombosis, as its name states, is the formation of a blood clot (thrombus) in the cavernous sinus.
The cavernous sinus is located within the skull and serves to drain blood from the brain and the middle portion of the face back to the heart.
Cavernous sinus thrombosis is not contagious and is not inherited.
Cavernous Sinus Thrombosis - Health Encyclopedia (449 words)
Cavernous sinus thrombosis is a blood clot in the cavernous sinus.
The cavernous sinus is a cavity at the base of the brain that contains a vein, several nerves, and other structures.
The cause of cavernous sinus thrombosis is usually a bacterial infection that has spread from the sinuses, ears, eyes, nose, or skin of the face.
  More results at FactBites »

 
 

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