Plasma - Carries red cells, white cells and plasma., Oxygen - The product that red blood cells carry, Immunity - White blood cells contribute to our ......, Carbon Dioxide - A poisonous waste gas from respiration, Protein - Urea is produced as a waste product made by the breakdown of what?, Pulse - The action of arteries expanding and recoiling is known as what?, Return - Veins ........ blood from the tissues to the heart., Capillaries - Microscopic vessels , Cardiac - The name of the muscle the heart is made up of., Tricuspid - The name of the valve dividing the atrium from the right ventricle.,

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