School of Thinking

Ten Facts about your ‘necktop computer’ …

Posted on August 8th, 2007 by Michael

images.jpg   Brain Facts:
Your brain weighs about 3 pounds (1,300-1,400 g).

Your brain has about 100,000,000,000 (100 billion) neurons.

There are 1,000 to 10,000 synapses for your “typical” neuron.

The total surface area of your cerebral cortex is about 2500 sq. cm.

Unconsciousness will occur 8-10 seconds after loss of blood supply to your brain.

Neurons multiply at a rate 250,000 neurons/minute during early pregnancy.

You have 12 pairs of cranial nerves.

You have 31 pairs of spinal nerves.

There are about 13,500,000 neurons in your spinal cord.

You can hear in the range of 20 Hz to 20,000 Hz.

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5 Responses to “Ten Facts about your ‘necktop computer’ …”


  1. Dani Chatfield Says:

    The brain is indeed an awesome, wonderful, powerful organ within the human body. Its intricate complexity gives a bare hint of the massive ability that it is capable of.

  2. Kim McLean Says:

    Wow. 250,000 neurons a minute in early pregnancy it’s amazing, its all amazing. It makes one mind boggle, what an ingenious design…..life.

  3. gopi Says:

    it shows how little of our brainware we use compared to the enormous potentiality it has

  4. Abo Says:

    Does it amaze you too?

    The brain too is a 10er. Everything about it is in 10s and (10 x 10 x 10)s.

    We too are striving to be 10ers.

  5. Maurice Says:

    I can hear up to 30khz and I dont now how.