The basal vein is a vein in the human brain. It is formed at the anterior perforated substance by the union of
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(a) a small anterior cerebral vein which accompanies the anterior cerebral artery and supplies the medial surface of the frontal lobe by the fronto-basal vein.
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(b) the deep middle cerebral vein ( deep Sylvian vein), which receives tributaries from the Insular cortex and neighboring gyri, and runs in the lower part of the lateral cerebral fissure, and
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(c) the inferior striate veins, which leave the corpus striatum through the anterior perforated substance.
The basal vein passes backward around the cerebral peduncle, and ends in the great cerebral vein; it receives tributaries from the interpeduncular fossa, the inferior horn of the lateral ventricle, the hippocampal gyrus, and the mid-brain.
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