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Blood

(Science: haematology) Considered a circulating tissue composed of a fluid portion (plasma) with suspended formed elements (red blood cells, white blood cells, platelets).

arterial blood is the means by which oxygen and nutrients are transported to tissues, venous blood is the means by which carbon dioxide and metabolic by-products are transported for excretion. The shedding of blood resulting in murder; he avenged the blood of his kinsmen.The fluid (red in vertebrates) that is pumped by the heart; blood carries oxygen and nutrients to the tissues and carries waste products away; the ancients believed that blood was the seat of the emotions.The descendants of one individual; his entire lineage has been warriors.Divided into three types of cells, all of which are suspended in the liquid matrix found in the blood stream; red blood cells (erythrocytes) which carry oxygen around the body, white blood cells (leucocytes) that are used in bodily defense and platelets which play an important role in blood clotting.