Definitions for neurogenic placodes

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  1. Neurogenic placodes

    A neurogenic placode is an area of thickening of the epithelium in the embryonic head ectoderm layer that gives rise to neurons and other structures of the sensory nervous system. Placodes are embryonic structures that give rise to structures such as hair follicles, feathers and teeth. The term "neurogenic placode" generally refers to cranial placodes that have neurogenic potential - i.e. those that give rise to neurons associated with the special senses and cranial ganglia. Cranial placodes include a diverse range of structures found across chordates, but the neurogenic placodes found in vertebrates arose later in evolution.

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"neurogenic placodes." Definitions.net. STANDS4 LLC, 2014. Web. 24 Oct. 2014. <http://www.definitions.net/definition/neurogenic placodes>.

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