What does the posterior inferior cerebellar artery do?

What does the posterior inferior cerebellar artery do?

The posterior inferior cerebellar artery (PICA) is the largest branch of the vertebral artery. It is one of the three main arteries that supply blood to the cerebellum, a part of the brain. Blockage of the posterior inferior cerebellar artery can result in a type of stroke called lateral medullary syndrome.

What is the posterior inferior cerebellar arteries?

The posterior inferior cerebellar artery (PICA) is the vessel that perfuses the lateral medulla, and is usually occluded due to thrombosis or embolism in its parent vessel, the vertebral artery.

What does anterior inferior cerebellar artery supply?

The anterior inferior cerebellar artery supplies the middle cerebellar peduncle, lower lateral pons, anteroinferior surface of the cerebellum, flocculus and the choroid plexus of the lateral ventricle.

What does the posterior cerebral artery do?

The Posterior Cerebral Artery (PCA) supplies the occipital lobe, the inferior part of the temporal lobe, and various deep structures including the thalamus and the posterior limb of the internal capsule. Primary and secondary visual areas. Functions in the sensation and interpretation of visual input.

Where does posterior inferior cerebellar artery supply?

The PICA supplies the medulla, the choroid plexus and tela choroidea of the fourth ventricle, the tonsils, the inferior vermis, and the inferior aspects of the cerebellar hemispheres 1, 7.

What are cerebellar arteries?

A cerebellar artery is an artery that provides blood to the cerebellum. Types include: Superior cerebellar artery. Anterior inferior cerebellar artery. Posterior inferior cerebellar artery.

What does anterior cerebral artery supply?

The anterior cerebral artery (ACA) arises from the internal carotid at nearly a right angle. It sends deep penetrating branches to supply the most anterior portions of the basal ganglia. To summarize, the ACA supplies the medial and superior parts of the frontal lobe, and the anterior parietal lobe.

What happens if the anterior inferior cerebellar artery is damaged?

The symptoms include sudden onset of vertigo and vomiting, nystagmus, dysarthria, falling to the side of the lesion (due to damage to vestibular nuclei), and a variety of ipsilateral features including hemiataxia, loss of all modalities of sensation of the face (due to damage to the principal sensory trigeminal nucleus …

What is the right posterior cerebral artery?

The posterior cerebral artery is a terminal branch of the basilar artery. It mainly supplies the occipital lobe, the inferomedial surface of the temporal lobe, midbrain, thalamus and choroid plexus of the third and lateral ventricles.

What structures does posterior cerebral artery supply?

Posterior Cerebral Artery and Branches The PCA supplies the occipital lobes, inferomedial portions of the temporal lobes, midbrain, thalamus, and deep structures including the choroid plexus and ependyma of the third and lateral ventricles.

What passes through the posterior inferior cerebellar artery?

The posterior inferior cerebellar artery (PICA ) winds backward around the upper part of the medulla oblongata, passing between the origins of the vagus nerve and the accessory nerve, over the inferior cerebellar peduncle to the undersurface of the cerebellum, where it divides into two branches.

What are the three major arteries in the cerebellum?

Posterior inferior cerebellar artery. The three major arteries of the cerebellum: the SCA, AICA, and PICA (posterior inferior cerebellar artery) Diagram of the arterial circulation at the base of the brain (PICA labeled at bottom right)

What is the clinical significance of lateral medullary syndrome?

Clinical significance. A disrupted blood supply to this artery due to a blood clot or embolus will result in tissue damage and lead to lateral medullary syndrome, also known as posterior inferior cerebellar artery syndrome ( PICA syndrome ), or Wallenberg syndrome. Severe occlusion of this artery or to vertebral arteries could lead…

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