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Property Organism Value Units ID Details
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...
Number of cells in larval nervous system Tunicate Ciona intestinalis 335 (±4) Unitless 105864 Nicol D, Meinertzhagen...
Number of presynaptic calcium channels open for each vesicle that is released Rat Rattus norvegicus 60 Unitless 103550 Borst, J.G.G. & Sakmann...
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...
Distance of individual neuron from a brain capillary Rat Rattus norvegicus rarely >8–20 µm 117110 Abbott NJ, Rönnbäck L...
Fraction of total body serotonin that is released into the gut by intestinal enterochromaffin cells Unspecified ~95 % 113115 Berger M, Gray JA, Roth...
Halflife of sodium channel Mammals in cultured mouse neuroblastoma cells ~1 day: in rabbit Schwann cells in vitro 2 days days 114486 Hildebrand C, Remahl S...
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....
Fraction of striatum that is striosomes (also known as patches) Vertebrates 10-15 % of striatal volume 117204 Brimblecombe KR, Cragg SJ...
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...
GABA concentration in brain Unspecified 1 mM 115055 Krnjević, K. "Chemical...
Main anatomical and electrophysiological characteristics of striatal GABAergic interneurons Vertebrates Table - link N/A 117207 Tepper JM et al., He...
Duration of synaptic formation in cultured neurons Rat Rattus norvegicus <60 min 112035 Hopf FW, Waters J, Mehta S...