Relating to or derived from the epiblast, the outer layer of cells in an early embryo that forms the nervous system and skin.
From epi- (upon) + -blastic (from Greek blastos, sprout/germ). The term emerged in 19th-century embryology to describe developmental layers.
Your entire nervous system started as a single layer of cells called the epiblast—this word captures that incredible moment when cells 'decide' they'll become your brain instead of your skin!
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