Internal occipital protuberance
（重定向自Protuberantia occipitalis interna）
![](/Images/godic/202502/04/Internal_occipital_protuberance32924.png")
![](/Images/godic/202502/04/Gray130_-_Internal_occipital_protuberance2924.png")
![](/Images/godic/202502/04/Internal_occipital_protuberance_-_animation22924.gif")
![](/Images/godic/202502/04/Internal_occipital_protuberance_-_close-up_-_animation2925.gif")
Along the internal surface of the occipital bone, at the point of intersection of the four divisions of the cruciate eminence is the internal occipital protuberance. Running transversely on either side is a groove for the transverse sinus.