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Table 4: 

Summary of the cranial nerve supply
Cranial NerveLocationArterial supply
III, IVCisternalMesencephalic perforators (common trunk for CN III)Vertebrobasilar system
Cavernous sinusCN III: ILT only; CN IV: marginal artery of the tentorium cerebelli (meningohypophyseal trunk) + ILT
Superior orbital fissureAnteromedial branch of ILT
VICisternalVertebrobasilar system
Dorsum sellaJugular branch of AscPhA, medial branch of lateral clival artery, meningohypophyseal trunk
Cavernous sinusILT
Superior orbital fissureAnteromedial branch of ILT
VCisternalBasilar vestige of trigeminal artery (between SCA and AICA)
Meckel caveLateral artery of trigeminal ganglion, cavernous branch of MMA, carotid branch of AscPhA, ILT
V2Foramen rotundumArtery of foramen rotundumILT, distal IMA
V3Foramen ovalePosteromedial branchILT, AMA
VII, VIIICisternal + IACInternal auditory arteryAICA
Geniculate ganglionPetrosal branch of MMA, stylomastoid branch of posterior auricular/occipital artery
IX, XCisternal, jugular foramenJugular branch of neuromeningeal trunkVA, AscPhA
XISpinal rootC3 segmental branchCervical arteries, musculospinal branch of AscPhA
Cranial rootJugular branch of neuromeningeal trunkAscPhA
XIICisternal hypoglossal canalHypoglossal branch of neuromeningeal trunkVA, AscPhA
  • 

    Note:—AscPhA indicates ascending pharyngeal artery; SCA, superior cerebellar artery; IAC, internal auditory canal; AICA, anterior inferior cerebellar artery; VA, vertebral artery.