title: The evolution of blood cells: facts and enigmas.
abstract: Although the origin and evolution of vertebrate blood cells is conjectural and controversial, it is, nevertheless, of great interest, particularly to comparative immunologists seeking an underlying trend in the phylogenetic development of immunity. This review examines possible relationships between invertebrate and vertebrate blood cells and describes some of the original concepts put forward to account for blood cell evolution.
authors: D A
authors: DA
authors: Millar
authors: N A
authors: NA
authors: Ratcliffe
mesh_terms: D000818:Animals; D005075:Biological Evolution; D001773:Blood Cells / Q000502:physiology*; D006801:Humans; D007111:Immunity, Cellular; D008214:Lymphocytes / Q000502:physiology; D008264:Macrophages / Q000502:physiology; D008407:Mast Cells / Q000502:physiology; D010802:Phylogeny