Rolandic Anatomy
External Occipital Protuberance
AI-powered interactive skeletal anatomy for medical and surgical education
A prominent bump at the back of the skull (the "inion"). It is a major landmark for neurosurgeons to locate the underlying confluence of dural sinuses; it also serves as an attachment for the trapezius muscle.
Sources and review
No verified external sources are linked on this page yet.
Review: Not yet medically reviewed.
Educational content only. Not medical advice. For clinical decisions, consult authoritative sources and qualified clinicians.