Groove for sigmoid sinus
Sulcus sinus sigmoidei
- Latin synonym: Sulcus sigmoideus; Sulcus sigmoides
Definition
The groove for sigmoid sinus (a.k.a. sigmoid sulcus) is a continuation of the groove of the transverse sinus. It travels in a downward S-shaped manner towards the jugular foramen. Within this groove lies the sigmoid sinus, which is a venous channel located inside the skull. The sigmoid sinus is formed at the point where the transverse sinus exits the tentorium cerebelli. It then follows down the path of the sigmoid sulcus on the surface of cranial cavity, ultimately entering the jugular foramen and draining into the internal jugular vein.
References
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Text written by Muhammad A. Javaid, MD, PhD © 2024 IMAIOS.
Drake, R.L., Vogl, A.W. and Mitchell, A.W.M. (2009). ‘Chapter 8: Head and Neck’ in Gray’s anatomy for Students. (2nd ed.) Philadelphia PA 19103-2899: Elsevier, pp. 827.
Guduri P, Ekanem UI, Shekhawat D, Chaiyamoon A, Cardona JJ, Iwanaga J, Dumont AS, Tubbs RS. Granular Foveolae in the Groove of the Sigmoid Sinus: An Anatomical Study. Cureus. 2023 Mar 25;15(3):e36678. doi: 10.7759/cureus.36678.
