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Section of the head and throat locating the organs of speech and song, including the upper resonators

Section of the head and throat locating the organs of speech and song, including the upper resonators.jpg Abraham LincolnThumbnailsFigure shows the limit of full expiration and inspiration of the male, side viewAbraham LincolnThumbnailsFigure shows the limit of full expiration and inspiration of the male, side viewAbraham LincolnThumbnailsFigure shows the limit of full expiration and inspiration of the male, side viewAbraham LincolnThumbnailsFigure shows the limit of full expiration and inspiration of the male, side viewAbraham LincolnThumbnailsFigure shows the limit of full expiration and inspiration of the male, side view

The important maxillary sinus cannot well be shown. It is found within the maxillary bone (cheek bone). The inner end of the line marked Nasal cavity locates it.