Petrosquamous sinus
Encyclopedia
The petrosquamous sinus, when present, runs backward along the junction of the squama
and petrous portion
of the temporal
, and opens into the transverse sinus.
Squama
Squama refers to a structure shaped like the scale of a fish. More specifically, it can refer to:* Squama frontalis* Squama occipitalis* Squama temporalis, the squamous portion of the temporal bone* Squamous cell...
and petrous portion
Petrous portion
Petrous portion can refer to:* Petrous portion of the temporal bone* Petrous portion of the internal carotid artery...
of the temporal
Temporal bone
The temporal bones are situated at the sides and base of the skull, and lateral to the temporal lobes of the cerebrum.The temporal bone supports that part of the face known as the temple.-Parts:The temporal bone consists of four parts:* Squama temporalis...
, and opens into the transverse sinus.