- Arises from the back at a level with the Facial Arteryfrom the External Carotid Artery
- Courses backwards deep to lower part of Posterior Belly of Digastric
- Grooves the base of the skull at the Occipitomastoid suture, deep to digastric notch on the Mastoid Process
- Passes through apex of Posterior Triangle to supply back of Scalp
- Gives off 2 branches to SCM
- At its origin, the artery crosses the Hypoglossal Nerve – which hooks around it from behind
- Nerve held down here by lower SCM branch of the Artery
