inferior petrosal sinus

English

Noun

inferior petrosal sinus (plural inferior petrosal sinuses)

1. (anatomy) The larger of the two petrosal sinuses that is situated inferiorly in a sulcus on each side formed by the junction of the petrous portion of the temporal bone and the basilar portion of the occipital bone and that extends from the posterior inferior end of the cavernous sinus through the jugular foramen to join the internal jugular vein of the same side.

   Coordinate term: superior petrosal sinus

Translations

sinus between the temporal and occipital bones

• Chinese:

  Mandarin: 岩下竇／岩下窦 (yánxiàdòu); 下岩竇／下岩窦 (xià yán dòu)

See also

• sigmoid sinus

References

• “petrosal sinus”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.