Figure 3.

Overall schematic view of the cranial arteries. (1) Ventral aorta VA; (2) Dorsal aorta DA; (3) First aortic arch 1AA; (4) Second aortic arch 2AA; (5) Third aortic arch 3AA; (6) Hypoglossal artery HA; (7) Pro-atlantal artery, type I PA 1; (8) Pro-atlantal artery, type II PA 2; (9) Third cervical segmental artery; (10) Longitudinal neural arteries LNA; (11) Para-ventral (lateral) neural artery; (12) Basilar artery (fused ventral arteries) BA; (13) Trigeminal artery Trig.A; (14) Primitive maxillary artery PMA; (15) Dorsal ophthalmic artery DOPHA; (16) Ventral ophthalmic artery VOPHA; (17) Middle cerebral artery MCA; (18) Anterior cerebral artery ACA; (19) Internal carotid posterior (caudal) division ICA Cd; (20) Anterior choroidal artery. AChA