Glossary & References / Keywords List / Definitions:

Term to be defined Definition Synonyms & Keywords
Blood - "fluid circulating in the vascular system of animals, distributing nutrients, oxygen, hormones, etc., and taking up waste products for excretion. In vertebrates it contains cells specialised for oxygen transport (red blood cells or erythrocytes) and white blood cells (leukocytes) which are concerned with protection against infection and scavenging dead cells."(B73)