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  2. Cerebral veins - Wikipedia

    en.wikipedia.org/wiki/Cerebral_veins

    3D model of cerebral veins. In human anatomy, the cerebral veins are blood vessels in the cerebral circulation which drain blood from the cerebrum of the human brain.They are divisible into external (superficial cerebral veins) and internal (internal cerebral veins) groups according to the outer or inner parts of the hemispheres they drain into.

  3. Circle of Willis - Wikipedia

    en.wikipedia.org/wiki/Circle_of_Willis

    Considerable anatomic variation exists in the circle of Willis, with classic anatomy seen only in about one-third of people. [4] In one common variation the proximal part of the posterior cerebral artery is narrow and its ipsilateral posterior communicating artery is large, so the internal carotid artery supplies the posterior cerebrum; this is ...

  4. Cerebral circulation - Wikipedia

    en.wikipedia.org/wiki/Cerebral_circulation

    The maturation of blood vessels in the brain is a critical process that occurs postnatally. [6] It involves the acquisition of key barrier and contractile properties essential for brain function. During the early postnatal phase, endothelial cells (ECs) and vascular smooth muscle cells (VSMCs) undergo significant molecular and functional changes.

  5. Posterior communicating artery - Wikipedia

    en.wikipedia.org/wiki/Posterior_communicating_artery

    In human anatomy, the left and right posterior communicating arteries are small [1]: 471 arteries at the base of the brain that form part of the circle of Willis. Anteriorly, it unites with the internal carotid artery (ICA) (prior to the terminal bifurcation of the ICA into the anterior cerebral artery and middle cerebral artery ); posteriorly ...

  6. Basilar artery - Wikipedia

    en.wikipedia.org/wiki/Basilar_artery

    The basilar artery (U.K.: / ˈ b æ z. ɪ. l ə /; [1] [2] U.S.: / ˈ b æ s. ə. l ər / [3]) is one of the arteries that supplies the brain with oxygen-rich blood.. The two vertebral arteries and the basilar artery are known as the vertebral basilar system, which supplies blood to the posterior part of the circle of Willis and joins with blood supplied to the anterior part of the circle of ...

  7. Dural venous sinuses - Wikipedia

    en.wikipedia.org/wiki/Dural_venous_sinuses

    These sinuses play a crucial role in cerebral venous drainage. A dural venous sinus, in human anatomy, is any of the channels of a branching complex sinus network that lies between layers of the dura mater, the outermost covering of the brain, and functions to collect oxygen-depleted blood. Unlike veins, these sinuses possess no muscular coat.

  8. File:Circulatory System en.svg - Wikipedia

    en.wikipedia.org/wiki/File:Circulatory_System_en.svg

    Draw in layers to made easy the modifications. Correction of the position of many of the arteries, veins and heart. Correction of too large abdomen and too small kidneys. Added venous sinuses. Arrows with heads, and different color to facilitate the location of the items. Colour text to improve the location of arteries and veins.

  9. Anterior cerebral artery - Wikipedia

    en.wikipedia.org/wiki/Anterior_cerebral_artery

    Arteries of the brain. Anterior cerebral artery labeled at the left (twice) The anterior cerebral artery is divided into 5 segments. Its smaller branches: the callosal (supracallosal) arteries are considered to be the A4 and A5 segments. [1] [2] A1 originates from the internal carotid artery and extends to the anterior communicating artery (AComm).