| Comments |
"From the data on the rate of oxygen consumption
of the brain presented in table 1 (BNID 110632), it is apparent that
its energy output is quite substantial, indeed one of
the highest of all the organs of the body. Consuming
oxygen at an average rate of 3.5 ml per 100 gm per
min., a brain of average weight, approximately
1,400 gm, accounts for a total oxygen consumption
of 49 ml per min. or almost 20 per cent of the total
basal body oxygen consumption of the normal young
human adult. Kennedy and his associates (primary source) have
found even higher cerebral metabolic rates in childhood (fig. 1), approximately 40 per cent higher, so
that in a 5-year old child, for example, the brain,
which at this age has reached close to its mature size,
may consume half of the total body oxygen uptake." |