I roto i te 1838 me te 1839, Schleiden ko Schwann tīmata whakatairanga i te whakaaro e (1) te wae taketake o ngā rauropi ko te pūtau, me te (2) e pūtau takitahi i te āhuatanga katoa o te ora, ahakoa whakaekea e ratou te whakaaro e (3) puta pūtau katoa i te wehenga o ētahi atu pūtau. whakawhetai ki te mahi o Robert Remak ko Rudolf Virchow, Heoi, i te 1860s te nuinga o ngā kairangahau i whakaaetia nga mau parau tumu katoa e toru o te mea i haere mai ki te kia mohiotia rite ki te ariā pūtau. arahina ariā pūtau kairangahau ki te re-envision takitahi rauropi rite huihui interdependent o ngā pūtau takitahi.
pānga nui ki te whakaaro koiora