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Property Organism Value Units ID Details
Fraction of excitatory axo-dendritic synapses in the CNS that occur on dendritic spines Unspecified >90 % 112037 Ziv NE, Smith SJ. Evidence...
Fraction of body energy consumed by the central nervous system (cns) Human Homo sapiens ~20 % 111083 Rangaraju V, Calloway N...
Representative examples for glutamic acid and serine concentrations measured in identified isolated neurons from the A. californica CNS California sea hare Aplysia californica Table - link N/A 106604 Nemes P, Knolhoff AM...
Number of cells in larval nervous system Tunicate Ciona intestinalis 335 (±4) Unitless 105864 Nicol D, Meinertzhagen...
Average number of neurons in the mouse brain Mouse Mus musculus 7.5e+7 unitless 100731 http://www.nervenet....
Percent of total serotonin produced in enterochromaffin cells Various 90 Percent 102687 Indiana University school...
Fraction of total body serotonin that is released into the gut by intestinal enterochromaffin cells Unspecified ~95 % 113115 Berger M, Gray JA, Roth...
Influx of Ca2+ triggerred by presynaptic action potential Rat Rattus norvegicus 12000 Ca2+/vesicle released 108626 Attwell D, Laughlin SB....
Expansion in the size of the brain relative to the body in humans compared to lower primates Human Homo sapiens 3 fold expansion 111648 Harris JJ, Jolivet R...
Comparison of white matter to gray matter in brain Unspecified energy use: white matter is 3-fold lower than gray matter: density of synapses: 80 fold lower N/A 111650 Harris JJ, Jolivet R...
Diameter of axon above which the great majority of axons are myelinated Metazoa animals >0.3 µm 110609 Harvey A. Swadlow and...
Conduction velocities of impulse between corticospinal tract and brainstem Monkey ≤110 m/sec 110612 Harvey A. Swadlow and...
Volume of neuron soma, nucleus & nucleolus Guinea Pig Cavia porcellus cell body 12,260µm^3: nucleus 1,660µm^3: nucleolus 25.6µm^3 µm^3 112112 Edstrom JE. Effects of...
Rate of transport of amino acid in the fast component Rat Rattus norvegicus 240 - 420 mm/day 112229 Vahlsing HL, Hirschl RB...
Duration of synaptic formation in cultured neurons Rat Rattus norvegicus <60 min 112035 Hopf FW, Waters J, Mehta S...
Number of calcium ions required to release neurotransmitter vesicle at presynaptic cleft vertebrates 200-13,000 Calcium ions/released vesicle 103549 Laughlin SB, de Ruyter...
Axonal action potential properties from recent studies of cell types in three major brain regions Mammals Table - link N/A 111176 Kress GJ, Mennerick S....
Number of neurons in larval brain of Drosophila Fruit fly Drosophila melanogaster 10,000-15,000 neurons 101672 Scott et al. A Chemosensory...
Fraction of all genes that are regulated by at least one miRNA Unspecified ~20-30 % 113092 Malan-Müller S, Hemmings...
Typical synaptic cleft distance Unspecified 20-40 nm 100721 http://faculty.washi...