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Property Organism Value Units ID Details
Distribution of the cerebrospinal fluid (CSF, mean 150ml) in adults Human Homo sapiens in the ventricles 25: in subarachnoid spaces 125 ml 117118 Sakka L, Coll G, Chazal...
Rate at which water is generated by glucose metabolism in normal brain activity Unspecified ~28 nL/gram/min 117117 Abbott NJ, Rönnbäck L...
Rate of spread of calcium waves through the astrocytic syncytium Unspecified ~100 µm/sec 117116 Abbott NJ, Rönnbäck L...
Number of readily distinguished distinct astrocyte phenotypes Unspecified ~11 distinct phenotypes 117115 Abbott NJ, Rönnbäck L...
Glutamate concentration Unspecified in interstitial fluid (ISF) <1: in plasma ~100 µM 117114 Abbott NJ, Rönnbäck L...
Transendothelial electrical resistance (TEER) of tight junctions Rat Rattus norvegicus in peripheral capillaries 2-20: in brain endothelium >1000 Ω.cm^2 117113 Abbott NJ, Rönnbäck L...
Electrical resistance between tight junctions in the BBB (blood-brain barrier) endothelial cells and in other tissues Unspecified BBB endothelial cells 1500-2000: other tissues 3-33 Ω.cm^2 117112 Stamatovic SM, Keep RF...
Surface area of (1.3 kg) brain Human Homo sapiens ~20 m^2 117111 Abbott NJ, Rönnbäck L...
Distance of individual neuron from a brain capillary Rat Rattus norvegicus rarely >8–20 µm 117110 Abbott NJ, Rönnbäck L...
Size of pores formed by claudins (Transmembrane proteins of the tight junction (TJ)) present in brain endothelial cells Vertebrates ~10 Å 117109 Stamatovic SM, Keep RF...
Width of periventricular germinal matrix (GM) (in brain) in human fetuses Human Homo sapiens at 23–24 weeks 2.5mm: at 32 weeks 1.4mm: by approximately 36 weeks complete involution mm 117108 Ballabh P, Braun A, ...
Genome-scale phylogeny of birds Birds Table - link million years ago 117107 Jarvis ED et al., Wh...
Overall pan-genomic background substitution rate Vertebrates birds ~0.0019: mammals ~0.0027 substitutions/site/million years 117106 Zhang G et al., Comparative...
Comparison of average size of introns, exons, and intergenic regions within avian, reptilian, and mammalian genomes Vertebrates Table - link N/A 117105 Zhang G et al., Comparative...
Smallest and largest known genomes Birds black-chinned hummingbird (Archilochus alexanderi) 0.91: common ostrich (Struthio camelus) ~1.3 Gb 117104 Zhang G et al., Comparative...
Chronogram for divergence of Bilateria (scroll down below figure to see table) Metazoa animals Table - link million years ago (Ma) 117103 Gregory D. Edgecombe et al....
Divergence of arthropods and priapulids Metazoa animals ~575 million years ago 117102 Peterson KJ, Cotton JA...
Divergence between echinoderms and chordates Metazoa animals ~900 million years ago 117101 Pinto MR, Melillo D,...
Protostome/deuterostome divergence Metazoa animals ~1,000 million years ago 117100 Pinto MR, Melillo D,...
Number of humoral and cell membrane proteins that are involved in the complement system in higher vertebrates Vertebrates >30 proteins 117099 Pinto MR, Melillo D,...