The main artery of the neck is a. principalis cervicis, an important artery branching from the aortic arch, passing along the anterior lateral surface of the entire neck and dividing in the stony region.
It originates from the III-IV costal cartilages at the level of the sixth-seventh cervical vertebra; enters the stony region between the pyramids of the temporal bones at the junction of their posterior arches. It emerges from under the thyroid cartilage and goes anteriorly, where it continues as the maxillary canal, which developed from the carotid sinus. Next it goes to the inner surface of the masticatory muscle, then turns upward into the subcutaneous tissue, where at the level of the base of the skull it merges into the upper branular ring