Video - Blood components
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Video Summary
There are four main components of blood: plasma, red blood cells, white blood cells, and platelets. Plasma is the liquid component of blood that consists of 55 % of the blood volume. It contains water, electrolytes, nutrients, hormones, and proteins. Red blood cells (RBCs) carry oxygen from the lungs to the body tissues. Red blood cells also transport carbon dioxide from the body. White blood cells (WBCs) help fight infection and disease. Platelets help with clotting.
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