Number of neurons in adult male brain

Value 8.61e+10 Unitless Range: ±8.12×10^9 Unitless
Organism Human Homo sapiens
Reference Azevedo FA, Carvalho LR, Grinberg LT, Farfel JM, Ferretti RE, Leite RE, Jacob Filho W, Lent R, Herculano-Houzel S. Equal numbers of neuronal and nonneuronal cells make the human brain an isometrically scaled-up primate brain. J Comp Neurol. 2009 Apr 10 513(5):532-41. p.535 right column top sentencePubMed ID19226510
Method The isotropic fractionator method (described in PMID 15758160)
Comments Range 78.82– 95.40 billion neurons. The fractional distribution of neurons in the human brain does not correspond to the fractional distribution of mass among brain structures: the cerebellum, which represents only 10% of total brain mass, contains 69.03±6.65 billion neurons, or 80% of all neurons in the human brain. See BNID 100690, 103185
Entered by Uri M
ID 106322