14fe9166_m__printable_picture_worksheet__Name
[#] 2 [Description and Function] This trap door belongs to both the respiratory system and the digestive systems. Swallowing triggers its closing over the trachea to prevent food and fluids from draining into our lungs. [Name] 
epiglottis
www.lessontutor.com: the Digestive System- printable picture worksheet
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