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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 Figure shows the limit of full expiration and inspiration of the male, side viewThumbnailsAbraham LincolnFigure shows the limit of full expiration and inspiration of the male, side viewThumbnailsAbraham LincolnFigure shows the limit of full expiration and inspiration of the male, side viewThumbnailsAbraham LincolnFigure shows the limit of full expiration and inspiration of the male, side viewThumbnailsAbraham LincolnFigure shows the limit of full expiration and inspiration of the male, side viewThumbnailsAbraham Lincoln

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.