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Respiratory System

TermDefinition
Alveoli thin-walled air sacs where gas exchange occurs
Epiglottis flap of cartilage that covers the airway when swallowing
Expiration exhaling; occurs when the size of the thoracic cavity decreases
Inspiration inhaling; occurs when the size of the thoracic cavity increases
Larynx the voice box; houses the vocal cords
Pharynx throat; area where air passes behind the nose and mouth
Bronchi main branches off the trachea which carry air into the lungs
Lungs large, spongy pair of organs in the thoracic cavity where gas exchange takes place in air sacs
Trachea the windpipe; parts of the airway between the pharynx and the bronchi, supported with rings of cartilage
Pulmonary Ventilation moving air into and out of the lungs; breathing
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