Phrase guide

inferior petrosal sinus

noun · 1 senses · updated from the 2026-07-25 local source snapshot

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1

noun

Meaning 1

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.

Definition source: English Wiktionary via Wiktextract

Topics: anatomy, medicine, sciences

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Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

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Across languages

Translations

2 source translations are retained for this English entry.

  • Chinese Mandarin: 岩下竇 /岩下窦 (yánxiàdòu) — sinus between the temporal and occipital bones
  • Chinese Mandarin: 下岩竇 /下岩窦 (xià yán dòu) — sinus between the temporal and occipital bones