Cell migrations in embryos.
D000818:Animals; D001769:Blood; D002465:Cell Movement; D002633:Chemotaxis; D002642:Chick Embryo; D004622:Embryo, Mammalian / Q000166:cytology / Q000502:physiology*; D004625:Embryo, Nonmammalian; D006412:Hematopoietic Stem Cells / Q000502:physiology*; D008214:Lymphocytes / Q000502:physiology; D009432:Neural Crest / Q000502:physiology*; D013950:Thymus Gland / Q000196:embryology / Q000502:physiology