{{ ::inferior_petrosal_sinus.jpg?400|}}

The inferior [[petrosal sinus]]es drain on either side inferiorly from the [[cavernous sinus]] and join with the [[sigmoid sinus]] to form the [[internal jugular vein]], which continues inferiorly.

The inferior petrosal sinus is situated in the [[inferior petrosal sulcus]], formed by the junction of the petrous part of the [[temporal bone]] with the basilar part of the [[occipital bone]].