Number of cells in newborn infant

Value 1.25e+12 Cells
Organism Human Homo sapiens
Reference Hirsch HR. The dynamics of repetitive asymmetric cell division. Mech Ageing Dev. 1977 Sep-Oct6(5):319-32. p.328 3rd paragraphPubMed ID895205
Primary Source Osgood EE. Development and growth of hematopoietic tissues with a clinically practical method of growth analysis. Pediatrics. 1955 Jun15(6):733-51 p.743 right column bottom paragraphPubMed ID14384372
Method (Primary source:) From the ratio of the weight of the 150 day fetus to the expected weight at birth, it is roughly estimated that the full-term fetus has approximately 1.25X10^12 diploid cells
Comments See BNID 102390
Entered by Uri M
ID 106413