parts of respiratory and circulatory system
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KEY CONCEPT The respiratory and circulatory systems bring oxygen and nutrients to the cells. The respiratory and circulatory systems work together to maintain homeostasis. The respiratory system moves gases into and out of the blood. The lungs contain the bronchi, bronchioles, and alveoli.
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Circulatory system - Heart and blood vessels
Respiratory system - Nose, nostrils, nasal cavity, pharynx, larynx, trachea, bronchi, broncholes, lungs.
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