Relating to the outer layer (ectoderm) and the central neural structures in embryonic development.
From ectoderm (ecto- 'outside' + derm 'skin') + -al suffix, referring to tissues derived from or related to the outermost embryonic germ layer.
Ectental connects developmental biology with anatomy—it describes how structures from the outermost embryonic layer (the ectoderm) relate to inner neural tissues, showing how layers of the developing embryo interact.
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