Relating to or located upon the branchial arch, structures in fish and embryonic vertebrates that develop into parts of the jaw and neck.
From epi- (upon) + branchial (relating to gills, from Greek branchia). The term describes the location on top of or associated with gill-related structures.
In fish, epibranchial structures are involved in the amazing transformation of gill-supporting bones into the tiny bones of your inner ear during evolution!
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