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Tiny sacs of lung tissue specilalized for the movement of gasses between air and blood. alveoli bronchi lungs bronchioles respiration bronchi alveoli bronchioles The passages that branch from the tracheaand direct air into the lungs. voice box; passageway for air moving from pharynx to trachea; contains vocal cords. larynx pharynx trachea lungs throat; passageway for food to the esophagus and air to the larynx. larynx voice box trachea pharynx the exchange of oxygen and carbon dioxide between living cells and their environment including breathing and cellular respiration. respiratory system alveoli respiration lungs windpipe; tube through which air moves. pharynx esophagus lungs trachea system responsible for taking in oxygen and releasing carbon dioxide using the lungs. respiratory system respiration lungs pharynx Flat muscle at the bottom of the chest cavity that helps with breathing. diaphragm lungs epiglottis ribs These are the smallest branches of the bronchi. alveoli bronchioles bronchi lungs the chemical reactions that let you get energy from food Respiration Cellular Respiration The Respiratory System Oxygen The main passageway to the lungs. the mouth the bronchi the nose the pharynx |