Sunday, January 29, 2006
Know our Brain !
brain of total body weight (150 pound human) = 2%- Average brain width = 140 mm Average brain length = 167 mm
- Average brain height = 93 mm
- Intracranial contents by volume (1,700 ml, 100%):
- brain = 1,400 ml (80%);
- blood = 150 ml (10%);
- cerebrospinal fluid = 150 ml (10%) (from Rengachary, S.S. and Ellenbogen, R.G., editors, Principles of Neurosurgery, Edinburgh: Elsevier Mosby, 2005)
- Average number of neurons in the brain = 100 billion
- Number of neurons in brain (octopus) = 300 million (from How Animals See, S. Sinclair, 1985) Number of neurons in Aplysia nervous system = 18,000-20,000 Number of neurons in each segmental ganglia in the leech = 350 Volume of the brain of a locust = 6mm3 (from The Neurobiology of the Insect Brain, Burrows, M., 1996)
05:05 Posted in Science | Permalink | Comments (1) | Email this
Comments
hutut4sk1ficmh0y
Posted by: 30488 | Thursday, November 13, 2008
Post a comment