Definition: 'Sigmoid Sinus'
sigmoid sinusType: Term
1. the S-shaped dural venous sinus lying deep to the mastoid process of the temporal bone and immediately posterior to the petrous temporal bone; it is continuous with the transverse sinus and empties into the internal jugular vein as it passes through the jugular foramen.
The information shown above for sigmoid sinus is provided by Stedman's.
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