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"The head is represented as having been thrown back, and the tongue drawn forward. <em>A</em>, <em>B</em> and <em>C</em>, cainine; <em>D, E</em> bicuspids; <em>F, H, K,</em> molars; <em>M</em> anterior pillar of the fauces; <em>N</em>, tonsil; <em>L</em> uvula; <em>O</em>, upper part of the pharynx; <em>P</em>, tongue drawn forward; <em>R</em> linear ridge, or raphe</em>." &mdash; Blaisedell, 1904

Back view of the adult mouth

"The head is represented as having been thrown back, and the tongue drawn forward. A, B…