Male Occiput, Posterior View

Description

Seen from behind, the male occiput forms the posterior contour of the head, centered on the external occipital protuberance (inion) at the midline of the squamous part of the occipital bone. From that prominence, the superior nuchal lines extend laterally toward the mastoid regions, while the highest nuchal lines sweep more superiorly along the posterior scalp. Inferiorly, the surface transitions into the upper posterior neck, where the midline nuchal ligament lies deep to the skin and aligns with the palpable bony landmark. Palpation of the external occipital protuberance is a staple of surface anatomy because it anchors orientation for the nuchal musculature, including trapezius and the occipital belly of occipitofrontalis via the epicranial aponeurosis. A hard, fixed midline bump is normal here; asymmetry, focal tenderness, or a new contour change raises concern for traumatic injury to the occipital bone or painful enthesopathy at nuchal line attachments. This posterior view also supports teaching of headache sources, since greater occipital nerve irritation often localizes to the occipital scalp near the superior nuchal line. Ideal for gross anatomy lab practicals and surface anatomy teaching in head and neck modules, this image also suits neurology and sports medicine materials covering occipital neuralgia, posterior scalp trauma assessment, and landmark-based examination. Use it in patient education handouts to explain where clinicians palpate the inion when documenting posterior head findings. Anatomical accuracy verified by SciePro's Medical Advisory Board.