groove for sigmoid sinus; sigmoid fossa/groove/sulcus

Introduction

A broad groove in the posterior cranial fossa on the lateral portion of the occipital bone. The groove later curves around the jugular process on to the mastoid portion of the temporal bone & on to the posterior inferior angle of the parietal bone; become continuous with the transverse groove in the end.

• lodges the transverse sinus.

More general terms

• groove
• ear

Additional terms

• semicircular canal