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Passage into trachea and esophagus; Pharynx

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Passage into trachea and esophagus; Pharynx.jpg Peasants (600 - 146 BC) ThumbnailsPartridgesPeasants (600 - 146 BC) ThumbnailsPartridgesPeasants (600 - 146 BC) ThumbnailsPartridgesPeasants (600 - 146 BC) ThumbnailsPartridgesPeasants (600 - 146 BC) ThumbnailsPartridges