The esophagus and pharynx have been opened to show the connections of the nasal cavity, oral cavity, larynx, and esophagus into the pharynx. The arrow (b, bottom left) represents the path that food ...
The newly sequenced genomes of two marine worms are shedding light on the 570 million-year evolution of gills into the pharynx that today gives humans the ability to bite, chew, swallow and speak. The ...
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