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Human Body Systems
Respiratory System
Respiratory system definition: The organs that transfer oxygen from the air to the body, like the nose, trachea and lungs.
Related Terms
Artery
Capillary
Circulatory System
Diffusion
Digestive System
Esophagus
Kidney
Large Intestine
Muscular System
Nervous System
Skeletal System
Small Intestine
Urinary Bladder
Vein
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