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week 6-12

respiratory system

TermDefinition
Respiratory System The body system responsible for gas exchange, bringing oxygen in and removing carbon dioxide
Ventilation The movement of air in and out of the lungs.
External Respiration Gas exchange between the alveoli and pulmonary capillaries.
Internal Respiration Gas exchange between systemic capillaries and body tissue
Alveoli Tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged.
Diffusion Movement of gases from high concentration to low concentration across the alveolar membrane
Diaphragm Primary muscle of breathing; contracts to allow inhalation.
Gas Exchange Transfer of oxygen and carbon dioxide between blood and alveoli.
Surfactant A substance that reduces surface tension in alveoli and prevents collapse.
Bronchi Large air passages that branch from the trachea into each lung.
Trachea Windpipe that carries air from the throat to the bronchi.
Created by: latoyalewis
 

 



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