The lymphatic organs where naive B lymphocytes circulate expose them to antigens.
Solids and liquids make up your blood. Oxygen, salts, and protein make up the plasma, which is the liquid component. Your body cells more than 50% plasma. Red blood cells, white plasma cells, and platelets make up your blood's solid portion.
Hemoglobin, or HEE-muh-glow-bin, is an o2 protein that is found in red blood cells. Hemoglobin absorbs oxygen from the lungs, giving plasma its vivid red color. Hemoglobin transports oxygen to the different physical areas as it circulates throughout the body.
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