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| Property | Organism | Value | Units | ID | Details |
|---|---|---|---|---|---|
| g-ratio (inner diameter of myelin sheath/outer diameter) | Metazoa animals | ~0.6 | unitless | 110610 | Harvey A. Swadlow and... |
| Human cerebral metabolic rate in various abnormal states associated with impaired mental function | Human Homo sapiens | Table - link | ml/100g/min | 110636 | Sokoloff L (1996) The... |
| Axon diameter in the optic nerve | North American opossum Didelphis virginiana | myelinated 0.3-6.7µm (mean 1.6µm): unmyelinated 0.2-1.6µm (mean 0.6µm) | µm | 112118 | Kirby MA, Clift-Forsberg L... |
| Percent of the blood supply of pancreas received by islets of Langerhans | Rat Rattus norvegicus | ~10 | % | 109968 | Rorsman P, Braun M. ... |
| Total number of vesicles in Calyx of Held | Mammals | ~1,500 - 4,000 | vesicles | 112559 | Rizzoli SO, Betz WJ.... |
| Biophysical and physiological parameters used in simulations (squid axon and mammalian pyramidal cell) | Metazoa animals | Table - link | N/A | 109242 | Faisal AA, White JA,... |
| Turnover of acetylcholinesterase | Various | 10000 | sec^-1 | 104100 | Stein, Wilfred D., Channels... |
| Fluctuation in number of neurons in brain area involved in producing and recognizing song | Canary bird Serinus canaria | 40,000 in spring to 25,000 in fall and winter | Neurons | 106409 | Williams RW, Herrup K.... |
| Percent of substrate/enzyme ratios that are >=1 | Various | 88 | % | 102472 | Albe KR, Butler MH, Wright... |
| Number of myelin sheaths each oligodendrocyte is connected to | Mammals | ≤30 - 60 | myelin sheaths | 114490 | Hildebrand C, Remahl S... |
| Fraction of anterior pituitary endocrine cells that produce adrenocorticotropic hormone (ACTH) | Unspecified | ~10 | % | 115258 | de Keyzer Y et al., V3... |
| Diameter of axon above which the great majority of axons are myelinated | Metazoa animals | >0.3 | µm | 110609 | Harvey A. Swadlow and... |
| Number of subtypes of retinal neurons | Vertebrates | ~60 | subtypes | 117170 | Bloomfield SA, Völgyi... |
| Conduction velocities of impulse between corticospinal tract and brainstem | Monkey | ≤110 | m/sec | 110612 | Harvey A. Swadlow and... |
| Total ATP use for brain tissue | Human Homo sapiens | 80 | µmol/liter/sec | 110641 | Bernstein BW, Bamburg... |
| Fraction of ATP turnover that actin turnover is responsible for | Human Homo sapiens | 50 (or ~40µmol/liter/sec) | % | 110642 | Bernstein BW, Bamburg... |
| Number of presynaptic nerve terminals that most neurons form | Unspecified | >500 | nerve terminals/neuron | 111276 | Sudhof TC. The synaptic... |
| Composition of myelin | Metazoa animals | lipids 70 - 80: protein 20 - 30 | % | 114494 | Hildebrand C, Remahl S... |
| GABA concentration in brain | Unspecified | 1 | mM | 115055 | Krnjević, K. "Chemical... |
| Brain metabolic cost out of whole body | Mammals | 2% - 10% non-humans: 20% humans | % | 110878 | Herculano-Houzel S. Scaling... |