The external carotid artery divides at the level of:
External carotid: It is the one of the terminal branches of common carotid artery and lies anterior to internal carotid artery. External carotid artery starts at the level of upper border of thyroid cartilage, runs upwards and laterally to terminate behind the neck of mandible by dividing into larger maxillary and smaller superficial temporal branches.
Angle of mandible
Neck of mandible
Oblique line of thyroid cartilage
Lower border of cricoid cartilage