Your Brain in Numbers
It's my 100th episode of BrainCraft! Thank you so much for watching! Leave a question in the comments for my Q&A next week ↓↓↓ SUBSCRIBE to BrainCraft! http://ow.ly/rt5IE My Twitter...
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The average human brain weighs about 1,400 g (3 lbs)It’s 14 cm wide, 16.7 cm long and 9.3 cm highIt’s about 78% water (compared to about 70% for the whole body)60% of your brain’s dry weight is fat, making it your fattiest organIt’s made up of 86 billion neurons, or brain cells, forming over 100 trillion connections,as well as about a trillion glia, or support cellsA piece of brain tissue the size of a grain of sand contains 100,000 neurons and 1 billionsynapses all communicating with each otherNeurons have 3 parts, the soma or body, the dendrites, and the axon, which reaches outtowards other cellsThe longest axon in the human body is about 1 m long, stretching from the base of thespine, to the big toeThe speed of a nerve impulse to your muscles is up to 120 m/s. ...
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The average human brain weighs about 1,400 g (3 lbs)It’s 14 cm wide, 16.7 cm long and 9.3 cm highIt’s about 78% water (compared to about 70% for the whole body)60% of your brain’s dry weight is fat, making it your fattiest organIt’s made up of 86 billion neurons, or brain cells, forming over 100 trillion connections,as well as about a trillion glia, or support cellsA piece of brain tissue the size of a grain of sand contains 100,000 neurons and 1 billionsynapses all communicating with each otherNeurons have 3 parts, the soma or body, the dendrites, and the axon, which reaches outtowards other cellsThe longest axon in the human body is about 1 m long, stretching from the base of thespine, to the big toeThe speed of a nerve impulse to your muscles is up to 120 m/s. ...
