Confluence of sinuses

Confluence of sinuses
Dural veins. (Labeled with "confluens sinuum")
Sagittal section of the skull, showing the sinuses of the dura. (Labeled with "torcula herophili".)
Details
Latin	confluens sinuum, torcula herophili
Source	superior sagittal sinus, straight sinus, occipital sinus
Drains to	transverse sinuses
Identifiers
MeSH	A07.231.908.224
Dorlands /Elsevier	c_52/12255035
TA
TH	{{#property:P1694}}
TE	{{#property:P1693}}
FMA	{{#property:P1402}}
Anatomical terminology [[[d:|edit on Wikidata]]]

The confluence of sinuses, torcular herophili, or torcula 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 straight 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.

Additional images

• Confluence of sinuses.jpg

  Confluence of sinuses

External links

• Anatomy figure: 28:03-07 at Human Anatomy Online, SUNY Downstate Medical Center
• http://neuroangio.org/venous-brain-anatomy/venous-sinuses/