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As explained in 2019 research from Current Neurology and Neuroscience Reports, the name itself reflects the true anatomical players: the sphenopalatine ganglion, branches of the trigeminal nerve and the meningeal blood vessels that supply the brain’s coverings.—Scott Travers, Forbes.com, 25 Feb. 2026 My immediately older brother and I were present as the cancer metastasized into the meningeal fluid of her spine and then into her brain.—Will Self, Harper's Magazine, 23 Sep. 2024