Alveoli - Tiny air sacs where gas exchange occurs., Trachea - The large airway that carries air from the nose and mouth., Capillaries - Tiny blood vessels that surround the alveoli., Bronchi - Two airways that branch off from the trachea., Bronchioles - The smallest airways that lead to the alveoli., Diaphragm - A dome-shaped muscle that plays a role in inhalation and exhalation., Intercostal muscles - Found between the ribs and play a role in inhalation and exhalation., Oxygen - Diffuses from the alveoli into the bloodstream., Carbon dioxide - Diffuses from the bloodstream into the alveoli.,

Respiratory System: Structures and Functions

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