What structures does PICA supply?
The PICA is the largest branch of VA that supplies critical regions of the medulla, fourth ventricle and cerebellum. It can be divided into 5 segments containing anterior medullary, lateral medullary, tonsillomedullary, telovelotonsillar, and cortical segment.
What does the posterior cerebral artery supply?
The cortical branches of PCA supply the posterior medial parietal lobe and the splenium of the corpus callosum, inferior and medial part of the temporal lobe including the hippocampal formation, and the medial and inferior surfaces of the occipital lobe. …
Where is the right posterior cerebral artery?
The left and right posterior cerebral artery arises from the bifurcation of the basilar artery, which occurs at the superior border of the pons, posterior to the dorsum sellae. From there, the posterior cerebral artery continues laterally along the superior border of the pons.
What does superior cerebellar artery supply?
SCA supplies the superolateral cerebellar hemispheres, the superior cerebellar peduncle, the dentate nucleus, and part of the middle cerebellar peduncle.
What is a PICA infarct?
The Posterior Inferior Cerebellar Artery (PICA) carries blood to this part of the brain. This stroke (Wallenberg’s Syndrome) causes the person to have balance problems and lean to one side. They may also have numbness on one side of the face and body and an eye droop. They may have hoarseness and trouble swallowing.
Where is the superior cerebellar artery?
The superior cerebellar artery arises near the end of the basilar artery. It passes laterally around the brainstem. This is immediately below the oculomotor nerve, which separates it from the posterior cerebral artery. It then winds around the cerebral peduncle, close to the trochlear nerve.
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 happens if the anterior inferior cerebellar artery is damaged?
Syndrome of Anterior Inferior Cerebellar Artery Occlusion Usual symptoms are nausea, vertigo, tinnitus, and hearing loss. Other features include vomiting, ipsilateral facial numbness, facial palsy, Horner syndrome, and contralateral loss of pain and temperature.