Ka tīmata te māramatanga o te pūnaha ā-roto i te mahi a te tākuta a William Harvey (1578<unk>1657), nāna i whakaahua te rere o te toto i roto i tana pukapuka "De motu cordis". I hanga e te tohunga Ingarihi a Stephen Hales te inenga tuatahi o te pēhanga toto i te tau 1733. Heoi, ko te mate toto tiketike hei kaupapa haumanu i puta mai i te hanganga o te sphygmomanometer e Scipione Riva-Rocci i te tau 1896. I whakaaetia e tenei te inenga ngawari o te pēhanga systolic i roto i te whare haumanu. I te tau 1905, i whakapai ake a Nikolai Korotkoff i te tikanga ma te whakaahua i nga oro Korotkoff e rangona ana i te wa e whakatipuhia ana te artery ki te stethoscope i te wa e whakakorehia ana te sphygmomanometer. I whakaaetia tenei ki te ine i te pēhanga systolic me te diastolic Question: What did William Harvey write?
Ko te De motu cordis