| Newborn total cell number |
2 x 1012
|
|
| Adult total cell number |
6 x 1013
|
|
| Different cytotypes |
254
|
|
| RBC number |
(5 x 1012/ l ) x 5 l = 25 x 1012
|
|
| glial cell number |
5 x 1011
|
|
| neuron number |
1011
|
|
| neuron morphotypes |
104
|
|
| average synapse number per neuron |
2 x 103
|
|
| cerebellar granule number |
1011
|
|
| cerebral cortex neuron number |
1,5 x 1010
|
|
| muscular fibers number |
2,5 x 108
|
|
| spinal cord neuron number |
108
|
|
| metasympathetic system neuron number |
108
|
|
| Purkinje cell number |
108
|
|
| nephrons number |
106 / kidney
|
|
| muscles number |
374
|
|
| bones number |
> 200
|
|
| body cell mass : the total weight of the cells of the body, including the cell nucleus, cytoplasm, water, salt, protein, and surrounding membrane, but excluding extracellular water and extracellular solids such as collagen, elastin, and bone matrix, constituting in essence the total mass of oxygen-utilizing, carbohydrate-burning, and energy-exchanging cells of the body; regarded as proportional to total exchangeable potassium in the body. | ||
| total H20 volume |
42
|
liters |
| H20 mass percentage |
60
|
% (from 72% in newborne to 46% in elder) |
| H20 in cells |
28
|
liters |
| H20 in interstitial spaces |
10,5-11
|
liters |
| H20 in plasma |
3-3,5
|
liters |
| maximum life span for Homo sapiens |
about 125
|
years |
| life expectancy at birth |
76
|
years |
Copyright © 2001-2005 Daniele Focosi.
All rights reserved
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