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What supplies blood to the thalamus?

Irrigated from below mostly by slender ascending brs. of the posterior circulation (posterior communicating branch and posterior cerebral artery)


Thalamus lies posterosuperior to the arterial circle of WIllis


What are the thalamostriate or thalamoperforate arteries?

Ascending slender branches to the thalamus perforate it from below


What supplies the thalamus from above?

anterior choroidal a. (br. of MCA) and posterior choroidal aa. (br. of PCA)


What is teh orgins of the anterior snf podterior choroidsl arteries?

Choroidal arteries are circumferential, arching from below to behind and above

anterior choroidal a. originates from MCA

 posterior choroidal a. originates from PCA