Confluence of sinuses

Confluence of sinuses
Vein: Confluence of sinuses
Gray488 blue.gif
Dural veins. (Labeled with "confluens sinuum")
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Sagittal section of the skull, showing the sinuses of the dura. (Labeled with "torcula herophili".)
Latin confluens sinuum, torcula herophili
Gray's subject #171 658
Source superior sagittal sinus, straight sinus, occipital sinus
Drains to transverse sinuses
MeSH Cranial+Sinuses

The confluence of sinuses or torcular herophili is the connecting point of the superior sagittal sinus, straight sinus, and occipital sinus. It is found deep to the occipital protuberance of the skull. Blood arriving at this point then proceeds to drain into the left and right transverse sinuses. The superior sagittal sinus often drains into (either exclusively or predominantly) one transverse sinus, and the occipital sinus drains into the other.

An older term often used for the confluence of sinuses "torcular herophili", describes the veins as a gutter, or canal, and honors Herophilos, the Greek anatomist who was the first to use cadavers for the systematic study of anatomy. This term more precisely refers to the concavity in the bone which is the location of the confluence of sinuses[1]

External links

References

  1. ^ Tubbs, R.S. Neuroanatomy, 2002:1, 14
v · d · eVeins (emissary, jugular and others) of head and neck (drainage patterns can vary) (TA A12.3.04–06, GA 7.644)
External jugular
Direct
Internal jugular

Superficial cerebral veins: superior · superficial middle · inferior  · inferior anastomotic (Labbé)  · superior anastomotic (Trolard)

Deep cerebral veins: great · internal (basal, deep middle, superior thalamostriate)
To COS
To CS
To IJV
Direct
Brachiocephalic
Direct

M: VAS

anat(a:h/u/t/a/l,v:h/u/t/a/l)/phys/devp/cell/prot

noco/syva/cong/lyvd/tumr, sysi/epon, injr

proc, drug(C2s+n/3/4/5/7/8/9)



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Look at other dictionaries:

  • confluence of sinuses — con·flu·ence of sinuses kän .flü ən(t)s , kən flü n the junction of several of the sinuses of the dura mater in the internal occipital region called also confluence of the sinuses, torcular Herophili * * * confluens sinuum …   Medical dictionary

  • confluence — A flowing together; a joining of two or more streams. SYN: confluens [TA]. [L. confluens] c. of sinuses [TA] a meeting place, at the internal occipital protuberance, of the superior sagittal, straight, occipital, drained by the two transverse… …   Medical dictionary

  • confluence — n. a point of coalescence. The confluence of the sinuses is the meeting point of the superior sagittal, transverse, straight, and occipital venous sinuses in the dura mater in the occipital region of the skull …   The new mediacal dictionary

  • Dural venous sinuses — Vein: Dural venous sinuses Dural veins …   Wikipedia

  • Transverse sinuses — Infobox Vein Name = PAGENAME Latin = sinus transversus durae matris GraySubject = 171 GrayPage = 657 Caption = Dural veins. (Transverse sinuses labeled as SIN. TRANS. at center right. Caption2 = The transverse sinuses are formed by the tentorium… …   Wikipedia

  • 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

  • Straight sinus — Infobox Vein Name = Straight sinus Latin = sinus rectus GraySubject = 171 GrayPage = 655 Caption = Dural veins (Straight sinus labeled as SIN. RECTUS at center right.) Caption2 = Dura mater and its processes exposed by removing part of the right… …   Wikipedia

  • Cerebral circulation — Inferior aspect of the human brain showing the arterial pattern Cerebral circulation refers to the movement of blood through the network of blood vessels supplying the brain. The arteries deliver oxygenated blood, glucose and other nutrients to… …   Wikipedia

  • Occipital sinus — Vein: Occipital sinus Dural veins …   Wikipedia

  • occipital sinus — n a single or paired venous sinus that arises near the margin of the foramen magnum by the union of several small veins, follows the internal occipital crest along the attached margin of the falx cerebelli, and empties into the confluence of… …   Medical dictionary

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