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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.
Major veins of the brain include the superior and inferior cerebral veins, superficial middle cerebral veins, the great cerebral vein (of Galen), internal cerebral veins, as well as the superior and inferior cerebellar veins.
The cerebral veins function to drain the capillary network that supplies the brain with blood; this removes carbon dioxide and other metabolic wastes, and allows fresh blood to flow in to take its place. The cerebral veins drain the entire brain as well as the eyes, meninges, and part of the face via the pterygoid plexus.
In this article, we shall consider the venous drainage of the CNS. We will discuss the veins of the brain, the dural venous sinuses, their drainage into the systemic circulation, and the venous drainage of the spinal cord.
The cerebral venous system is a network most commonly described as two essential systems working in conjunction with one another: the superficial system and the deep system.
The superficial cortical veins are located in the pia matter on the surface of the cortex and drain the cerebral cortex and subcortical white matter. The deep or central veins consist of subependymal veins, internal cerebral veins, basal vein, and the great vein of Galen (Figure 5).
The cerebral veins can be divided into superficial (cortical) cerebral veins, and deep (cerebral) veins. The superficial cerebral veins course along the cortical sulci and drain the cortex of the brain.
A silent network of vessels weaves through our brains, carrying the lifeblood that fuels our every thought, emotion, and action. This intricate web of arteries, veins, and capillaries forms the foundation of our cognitive existence, yet it often goes unnoticed until something goes awry.
The internal cerebral veins and their tributaries constitute the transcerebral venous system which may be divided into 3 groups, the medial and lateral subependymal venous groups, and the choroidal and thalamo-callosal group.
Its knowledge is ever more an essential requirement of the modern brain physician. In this article, the authors explore the descriptive and functional anatomy of the venous system of the CNS in 5 subsections: embryology, dural sinuses, cortical veins, deep veins, and spinal veins.