Anatomical Structure and Location of the Occipital Artery

Description

Running superiorly from the external carotid artery, the occipital artery curves posteriorly deep to the posterior belly of the digastric and the mastoid process, then ascends onto the occipital scalp. Along the lateral skull, its terminal rami arborize across the posterior calvaria toward the superior nuchal line, with smaller arterioles tracking in the subcutaneous tissue of the scalp. Nearby venous pathways are rendered in blue and the cervical vertebrae anchor the neck region inferiorly, supporting orientation to the craniocervical junction. A short, clean lateral view. Surgeons and interventionalists care about this vessel because it runs in close relationship to the occipital groove region and the suboccipital muscular envelope, where dissection during posterior cervical approaches and exposure near the mastoid tip can put it at risk of brisk bleeding. Its anastomoses with the posterior auricular and superficial temporal systems explain collateral flow patterns in external carotid disease and help interpret scalp perfusion after trauma or flap elevation. For headache and neuralgia workups, its course also provides a practical surface correlate near the superior nuchal line, where vascular tenderness can mimic or accompany greater occipital nerve irritation. Use this plate for head and neck anatomy teaching blocks, neuroanatomy or ENT lectures on external carotid branches, and surgical texts describing posterior scalp incisions, mastoid-region exposure, or occipital artery based flaps. It also fits radiology and anatomy manuals that pair line art with CTA or angiography of the external carotid circulation. Anatomical accuracy verified by SciePro's Medical Advisory Board.