Dural venous sinuses

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Dural venous sinuses
Illustration of the dural venous sinuses
Dural venous sinuses
Details
Identifiers
Latinsinus durae matris
MeSHD003392
TA98A12.3.05.101
TA24846
FMA76590
Anatomical terminology

The dural venous sinuses (also called dural sinuses, cerebral sinuses, or cranial sinuses) are

arachnoid granulations. They mainly empty into the internal jugular vein.[2]
Cranial
venous sinuses communicate with veins outside the skull through emissary veins
. These communications help to keep the pressure of blood in the sinuses constant. The major dural venous sinuses included the superior sagittal sinus, inferior sagittal sinus, transverse sinus, straight sinus, sigmoid sinus and cavernous sinus. These sinuses play a crucial role in cerebral venous drainage. A dural venous sinus, in human anatomy, is 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 sinuses possess no muscular coat.

The major dural venous sinuses included the superior sagittal sinus , inferior sagittal sinus, straight sagittal sinus, sigmoid sagittal sinus, transverse sagittal sinus and cavernous sinus

Venous sinuses

Name Drains to
Anterior
Sphenoparietal sinuses
 Cavernous sinuses
Cavernous sinus Superior and inferior petrosal sinuses
Midline
Superior sagittal sinus Typically becomes right transverse sinus or confluence of sinuses
Inferior sagittal sinus Straight sinus
Straight sinus Typically becomes left transverse sinus or confluence of sinuses
Posterior
Occipital sinus Confluence of sinuses
Confluence of sinuses Right and left transverse sinuses
Lateral
Superior petrosal sinus Transverse sinuses
Transverse sinuses Sigmoid sinus
Inferior petrosal sinus Internal jugular vein
Sigmoid sinuses
 Internal jugular vein

Paired venous sinus [3]

Structure

The walls of the dural venous sinuses are composed of

lymph vessels. They differ from other blood vessels in that they lack a full set of vessel layers (e.g. tunica media) characteristic of arteries and veins. They also lack valves (in veins; with exception of materno-fetal blood circulation i.e. placental artery and pulmonary arteries both of which carry deoxygenated blood).[citation needed
]

Clinical relevance

Main article: Cerebral venous sinus thrombosis

The sinuses can be injured by trauma in which damage to the

hemorrhagic infarction or cerebral edema with serious consequences including epilepsy, neurological deficits, or death.[4]

Additional images

  • Dural veins
    Dural veins
  • Sagittal section of the skull, showing the sinuses of the dura.
    Sagittal section of the skull, showing the sinuses of the dura.
  • Dura mater and its processes exposed by removing part of the right half of the skull, and the brain.
    Dura mater and its processes exposed by removing part of the right half of the skull, and the brain.
  • The sinuses at the base of the skull.
    The sinuses at the base of the skull.
  • Major sinuses and their tributaries
    Major sinuses and their tributaries

References

  1. ISBN 0-7817-5154-3. Archived from the original
    on 2011-05-14. Retrieved 2006-01-27.
  2. ^ a b Gaillard, Frank. "Dural venous sinuses | Radiology Reference Article | Radiopaedia.org". Radiopaedia.
  3. ISBN 978-93-5466-477-9
    .
  4. PMID 10066840
    .

External links

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