about dysphagia. human scheme with nasal cavity, mouth, tongue, epiglottis, larynx, trachea and esophagus.

anatomy blocking blocks bolus breath breathe breathing cavity choke closeup compering coughing digestion dysfunction dysphagia eating epiglottis esofago esophagus food gastric head health healthcare human illustration isolated larynx lingua lungs medical medicine mouth nasal nose oral organ reflex scheme stifle stomach swallow swallowing throat tongue trachea tract upper vector