Branches and distribution of cortical arteries |
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middle cerebral artery |
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Branches
- Orbitofrontal (1)
- Pre-rolandic (2)
- Rolandic branches ( 3)
- Anterior and posterior parietal branches (4)
- Anterior temporal (5)
- Posterior temporal (7)
- Angular artery
- Lenticulostriate arteries (central arteries)
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Anatomical areas supplied |
Functional areas supplied |
Effects of occlusion |
- Lateral parts of the orbital gyri
- Inferior and middle frontal gyri
- Most of the pre-central
- Post central gyri
- Superior and inferior parietal lobules
- Superior and middle temporal gyri.
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- The motor and pre-motor areas
- The somato-sensory
- Auditory areas
- Motor speech
- Sensory speech
- Pre-frontal area
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- A severe contralateral hemiplegia, most marked in the upper extremity and face
- Contralateral sensory impairement worse in the upper part of the body
- Severe global aphasia
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Anterior Cerebral artery |
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Branches
- The medial striate (recurrent artery of Heubner)
- Orbital branches (1)
- Frontopolar artery (2)
- Callosomarginal artery (3)
- Pericallosal artery (4)
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Anatomical areas supplied |
Functional areas supplied |
Effects of occlusion |
- Orbital and medial surfaces of the frontal lobe.
- Paracentral lobule
- Cingulate gyrus.
- Medial surface of the parietal lobe
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- Motor and sensory for lower limb
- Higher cognitive in pre-frontal areas
- Cognitive impairment
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- contralateral hemiplegia, which is greatest in the lower limb.
- Impaired sensation in the lowe limb
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The posterior cerebral artery |
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Branches
- Long quadrigeminal
- Thalamogeniculate
- parieto-occipital
- Calcarine
- Posterior temporal
- Anterior temporal
- Mesencephalic
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Anatomical areas supplied |
Functional areas supplied |
Effects of occlusion |
- Inferior temporal gyrus
- Occipital lobe
- Midbrain
- Choroid plexus of the third and lateral ventricles
- Splenium of the corpus callosum.
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- The visual cortex
- Crus cerebri
- Limbic lobe
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- Peripheral blindness with macular area sparing
- Superior alternating hemiplegia
- Limbic dysfunction
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Summary of cortical blood supply |
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Region
Anterior cerebral artery
Middle cerebral artery
Posterior cerebral artery |
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