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Glite Dictionary
sigmoid sinus

sigmoid sinus

9.1
A large S-shaped vein in the covering of the brain that takes blood to a vein in the neck
  • noun
  • /ˈsɪɡmɔɪd ˈsaɪnəs/
  • Specialized
translation icon : seno sigmoide
  • Magnetic resonance imaging showed thrombosis of both transverse sinuses and the right sigmoid sinus.
  • sigmoid sinus and internal jugular
  • left sigmoid sinus
  • sigmoid sinus and internal

Examples

  • The endolymphatic sac develops from the otocyst and lies between the internal auditory canal and sigmoid sinus.

    Academic text (2008)

  • In one case (2.4%), the sigmoid sinus was injured.

    Academic text (1998)

  • The sigmoid sinus was solid and filled with granulation tissue.

    Academic text (2007)

  • Curettage was performed on the sigmoid sinus until all disease was cleared and the dura exposed.

    Academic text (2007)

  • Intracranial complications have been reported in association with removing osteomas from the sigmoid sinus.

    Academic text (2008)

  • Four of the fixtures (9.7%) in this study were inserted in contact with the sigmoid sinus.

    Academic text (1998)

  • The large, sessile bony mass is adherent to the sigmoid sinus.

    Academic text (2008)

  • Residual cholesteatoma was found in the mastoid cavity over the sigmoid sinus.

    Academic text (1996)

  • Magnetic resonance imaging (MRI) showed hyperintensity in the right lateral and sigmoid sinuses.

    Academic text (2009)

  • During the surgery, the surgeon carefully examined the sigmoid sinus to avoid any complications.

Synonyms

sinus sigmoideus
vssigmoid sinus
  • Specialized
9.9

A large S-shaped vein at the back of the skull that carries blood from the brain

is the English anatomical name for the same channel rather than the Latin form

Surface Forms

sigmoid sinus singular
sigmoid sinuses plural

Morphology

sigmoid + sinus

The core meaning — an S-shaped venous channel — is directly composed from 'sigmoid' (S-shaped) + 'sinus' (venous/vascular channel). Although the full anatomical specifics (location in the dura mater, drainage into the jugular) are technical, the adjective+noun composition is transparent and a learner who knows both constituents can infer the basic referent.

Etymology

Sigmoid sinus is named for its shape and job: sigmoid means 'S-shaped' and sinus here means a 'channel' that carries blood. Because this channel bends like an S and 'drains' blood from the brain into the jugular vein, the name helps you remember what it does.