Vascular anatomy

Cerebral Arteries

• Internal Carotid Artery
  • Posterior Cerebral Artery
• External Carotid Artery

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• Choroidal arteries

Cerebral Veins

Superficial veins

Cerebral Veins	Feature
Superficial middle cerebral veins	Course along the sylvian fissure Drain into the cavernous sinus Drain into the vein of Trolard → superior sagittal sinus Drain into vein of Labbé → transverse sinus Mnemonic: Trolard = Top, Labbé = Lower
Superior anastomotic vein	Vein of Trolard, drains from the sylvian fissure → superior sagittal sinus
Inferior anastomotic vein	Vein of Labbé, drains from the sylvian fissure → transverse sinus

Deep veins

Cerebral Veins	Feature
Internal cerebral veins	Course: located in the tela choroidea of the roof of the third ventricle (velum interpositum), extend from the interventricular foramen, travel over the thalamus and posteriorly to the quadrigeminal cistern, where they join to contribute to the vein of Galen Formed by the union of the thalamostriate, choroidal, septal, epithalamic, and lateral ventricular veins
Basal vein of Rosenthal	Drains the anterior and medial temporal lobe Course: passes posterosuperiorly through the ambient cistern, joins the internal cerebral vein to form the vein of Galen
Vein of Galen	Receives both internal cerebral veins, basal veins of Rosenthal, occipital veins, and posterior callosal vein Travels under the splenium and merges with the inferior sagittal sinus to form the straight sinus