Unlike the lower airway, which is supported by cartilage rings and rigid structures, the upper airway—specifically the pharynx—is a collapsible tube made up of muscle and mucosa.

Possible new organ in the human throat discovered by Dutch scientists It's hard to imagine there is a part of the human body that's gone unnoticed by doctors after centuries of medical research.

Unlike the lower airway, which is supported by cartilage rings and rigid structures, the upper airway – specifically the pharynx – is a collapsible tube made up of muscle and mucosa.