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Haematopoiesis
Formation of blood cellular components / From Wikipedia, the free encyclopedia
Haematopoiesis (/hɪˌmætəpɔɪˈiːsɪs, ˌhiːmətoʊ-, ˌhɛmə-/,[1][2] from Greek αἷμα, 'blood' and ποιεῖν 'to make'; also hematopoiesis in American English; sometimes also h(a)emopoiesis) is the formation of blood cellular components. All cellular blood components are derived from haematopoietic stem cells.[3] In a healthy adult human, roughly ten billion (1010) to a hundred billion (1011) new blood cells are produced per day, in order to maintain steady state levels in the peripheral circulation.[4][5][page needed]
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