As the tongue develops still further,the copula of the tongue base,after overgrowing the second branchial arch,merges with the anterior swellings of the first branchial arch of the tongue body,with the fusion is superficially demarcated by the:

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As the tongue develops still further,the copula of the tongue base,after overgrowing the second branchial arch,merges with the anterior swellings of the first branchial arch of the tongue body during the eighth week of prenatal development.This fusion is superficially demarcated by the sulcus terminalis in the mature dorsal surface of the tongue,an inverted V-shaped groove marking the border between the base of the tongue and its body.

As the Tongue Develops Still Further,the Copula of the Tongue