Showing posts with label blood supply of brain. Show all posts
Showing posts with label blood supply of brain. Show all posts

Blood supply of internal capsule

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Blood supply of internal capsule comes from 3 main arteries they are Lateral striate branches of middle cerebral artery. Medial striate bra...

Features of Anterior cerebral artery occlusion

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Main Artery Occlusion:clinical features Contralateral hemiplegia affecting Lowerlimb more than Upperlimb. Contralateral cortical sensor...

Posterior cerebral artery syndrome

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Symptoms of Posterior cerebral artery infarct Structures affected in PCA syndromes Posterior cerebral artery syndromes Clinical presenta...

Middle cerebral artery syndrome

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Partial MCA syndrome What is malignant MCA territory infarcts ? Structures involved in MCA stroke Middle Cerebral Artery (MCA) Syndrome...

Partial MCA syndrome

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Partial  MCA syndromes occur due to the following Cortical collateral blood flow  Differing arterial configurations Partial syndromes...

What is malignant MCA territory infarcts ?

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Malignant MCA territory infarct can occur  Due to an occlusion of the proximal MCA (M1 segment) and they are associated with an 80% mort...

Structures involved in MCA stroke

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1.Paralysis of the contralateral face, arm, and leg and sensory impairment over the same area (pinprick, cotton touch, vibration, posit...

Middle Cerebral Artery (MCA) Syndrome

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The clinical picture vary depends on the site of occlusion and availability of collaterals.It is characterized by: Contralateral hemiple...

The vertebral artery

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The vertebral artery arises from the following vessels   Inn ominate artery on the right   Subclavian artery on the left       S...

Symptoms of Posterior cerebral artery infarct

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Origin of Posterior cerebral artery The two PCAs are the terminal branches of the basilar artery in majority of people In 20%—25% one ...

The anterior cerebral artery and its branches

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The anterior cerebral artery runs medially on the medial surface to the cerebral hemisphere, then around the corpus callosum as far as the...

Structures affected in PCA syndromes

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Symptoms and signs of stroke depends on the areas of brain affected and the stuctures involved .The various structures involved in central...

Posterior cerebral artery syndromes

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In 75% of cases, both PCAs arise from the bifurcation of the basilar artery In 20%, one has its origin from the ipsilateral internal car...

Clinical presentation of Posterior Cerebral Artery (PCA) occlusion

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The clinical presentation varies with the site of occlusion and availability of collaterals. Partial syndromes are common,Symptoms depends...