artery presumptive mesencephalic artery Branches dorsally from the cranial division of the internal carotid artery, then curves caudally along the dorsal medial wall of the eye capsule to drain into the PMBC just rostral to the midbrain hindbrain boundar[ZFIN:curator]y EFO:0003615 Precursor to mesencephalic artery. primitive mesencephalic artery ZFA:0001062 PMsA TAO:0001062 UBERON:2001062 zebrafish component