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๐ง
๐ซ Human Body
The Human Brain
86 billion neurons; 3% of body weight, uses 20% of energy; the most complex structure known
Belgium ๐ 1543 Human Body
Key Facts
- 1
~86 billion neurons connected by 100+ trillion synapses; 3% body weight, consumes 20% of energy
- 2
Brain regions: cerebrum (thinking), cerebellum (balance), brainstem (vital functions), limbic system (emotions)
- 3
Neuroplasticity: the brain rewires itself throughout life; learning creates new neural connections
๐ Did you know? The human brain has ~100 trillion synaptic connections โ more than the number of stars in the Milky Way galaxy
Quick Reference
Category
Human Body
Country
๐ Belgium
Year / Era
1543
About
86 billion neurons