A. Weight:
- Dog's brain: 80 grams
- Chimpanzee's brain: 400 grams
- Human Adult's brain: 1300-1400 grams
- Sperm Whale's brain: 2000 grams
- Dolphin's brain: 8000 grams
B. Our brain consists of:
- Water: 80%
- Fat: 10%
- Protein: 8%
C. Cerebral Cortex
Is a sheet of folded neural tissue, about the size of a newspaper.
A nerve cell, also known as a neuron, is linked by a nerve fiber that is about the length of 25 times the circumference of the earth.
Corpus callosum: is a wide, flat bundle of 250 million neural fibers.
D. Two types of nerve cells
Neurons (10%):
A monkey's brain has 100 billion neurons; a human's brain has 1000 billion. We lose about 50 to 100 thousand neurons a day due to degenerating.
Glial cells, sometimes called Neuralgia (90%):
A human's brain has 1 trillion glial cells.
E. Cells:
100 billion neurons - 10s trillion synapses can process 1027 data in a second. "Intelligence and neurons: an increase in the number of synapses on a neuron decreases the number of neurons loss in degeneration."
F. The brain is 2% of the entire human body, 200% of the energy used
G. The main energy sources of the Brain:
- Blood: 30 Liter/hour - 720 Liter/day
- Oxygen: 20% of body need
- Glucose
- Protein
- Micro Nutrients
- Water
