heart - main organ of the circulatory system; pumps blood, blood vessels - tubes that transport blood through the body, artery - blood that carries blood with O2 away from the heart, vein - blood vessel that carries blood without O2 towards the heart, capillary - blood vessel where O2/nutrients enter the cell and CO2 and wastes exit the cell, red blood cells - component of blood that transports O2, white blood cells - component of blood that helps to fight infections and diseases, platelets - component of blood that helps with clotting; forms scabs, plasma - liquid component of blood, trachea - carries air from the nasal cavity to the bronchi; windpipe, bronchi - carries air from the trachea to the bronchioles; one leads to right lung, one leads to left lung, bronchioles - smaller airways that branch throughout the lungs; end in the alveoli, alveoli - tiny air sacs where O2 enters the bloodstream and CO2 enters the lungs, lung - main organ of the respiratory system, diaphragm - muscle that aides in the breathing process,

Circulatory and Respiratory System Organs

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