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Major blood vessels of the Brain |
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Internal carotid |
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4 big segments: o Cervical o Intrapetrosal o Intracavernous o Supraclinoid |
Ophthalmic (first branch) |
Retina |
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Anterior Choroidal |
Optic tract – internal capsule (post limb) – cerebral peduncle Globus pallidus – LGB – hippocampus – amygdala – Thalamocortical pathway (would cause neglect) |
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Posterior Communicating |
Thalamic perforators to anterior thalamus.
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Anterior Cerebral |
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Cortical |
Medial and parasagittal aspect of the hemispheres |
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Medial lenticulostriate |
Basal ganglia, corpus callosum, and part of the fornix. |
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Recurrent artery of Huebner |
Head of the caudate,
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Middle Cerebral |
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Cortical |
Lateral aspect of the cerebral hemisphere and anterior temporal lobe, |
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Lateral lenticulostriate |
Basal ganglia and internal capsule |
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Vertebral |
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Anterior spinal |
midline medulla and anterior spinal cord |
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Posterior spinal |
Lateral medulla and postero-lateral spinal cord |
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Paramedian perforators |
Paramedian part of medulla |
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PICA |
Lateral medulla and inferior part of cerebellum |
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Basilar |
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Median/Paramedian perforators |
Medial pons Small vessel disease or Atherosclerosis |
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Circumferential |
Lateral pons Embolic stroke |
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AICA |
Inferior part of lateral pons Embolic stroke |
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SCA |
Superior part of lateral pons Embolic stroke |
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Posterior Cerebral |
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Cortical |
Occipital – Inferior temporal lobes (except uncus by MCA) – Splenium and inferior parietal lobule |
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Perforating |
Midbrain and thalamus |
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Other important blood vessels |
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Internal auditory: |
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branch from AICA, lesion cause vertigo and deafness |
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Vascular supply of Important Brain Structures |
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Thalamus |
Anterior (language-memory): anterior thalamoperforating a = polar a (PCOM) Medial (arousal-memory): posterior thalamoperforators (P1 and tip of basilar) Lateral (motor-sensory): thalamogeniculate (P2) Posterior (visual): Post Choroidal (P2) |
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Internal Capsule |
Ant Limb: Medial striates (ACA) – Lateral striates (MCA) Genu: ICA branches – Lateral striates (MCA) Post Limb: Ant choroidal – Lateral striates (MCA) |
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Caudate |
Medial portion: anterior choroidal Lateral portion: recurrent artery of Huebner |
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Putamen |
Lateral striates (MCA) |
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Globus Pallidus |
Medial: anterior choroidal (ICA) Lateral: Lateral striates (MCA) |
