Petrosquamous suture

Petrosquamous suture is a shallow bony fissure between the medial horizontal petrous part and lateral vertically oriented squamous part of the temporal bone.

At times, this cranial suture may house a small emissary vein which can bleed at the time of surgeries.

Head and neck anatomy
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Article information

rID: 46887
System: Head & Neck
Section: Anatomy
Synonyms or Alternate Spellings:
  • fissura petrosquamosa

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Cases and figures

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    Figure 1: diagram - medial temporal bone
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