leukocyte cell cartoon happy sailor style with binocular

antibodies binocular biology bloodstream bluejacket boater captain cartoon cell character circulatory cute deactivation emoticon emotion expression funny haematology happy humoral illustration immunity isolated leucocyte leukocyte lymph lymphocyte lymphoid mariner mascot medical medicine microbiology microscopic natural nodes organism pathology pirate receptors sail sailor science seafarer seaman smile spleen vector wbc