The human brain is made up of neurons that send signals to each other and different parts of the body. It functions as the hub of the nervous system, with sensory nerves carrying messages from the body to the brain and motor nerves relaying signals from the brain to muscles. The brain is divided into three main parts: the cerebrum, cerebellum, and brain stem. It performs many complex functions and contains around 100 billion neurons, having around 70,000 thoughts per day.

1. The Human Brain
Made by : Muhammad Humam Khan

2. Table Of Contents
• How does it work?
• Hub of the Nervous system
• Brain Functions
• Fascinating Facts
• Conclusion

3. How does it work?

4. How does it work?
• The brain is made up of cells called neurons.
• The human brain may contain up to 100 billion neurons of
different kinds.
• Every second, a single neuron will send as many as 1,000
signals.
• The following are the three different parts of the brain:
a. Cerebrum
b. Cerebellum
c. Brain stem

5. Hub of the Nervous system
• As you breathe, move, and interact with your surroundings,
sensory nerves carry messages about what is happening
throughout your body to your brain
• Motor nerves relay signals from your brain to your muscles,
telling you how to respond

6. Brain Functions

7. Fascinating Facts

8. Fascinating Facts
• The nervous system runs on electricity, but the levels are
extremely low. Brain signals involve less than one-tenth of the
voltage of an ordinary flashlight battery
• You have an average of 70,000 thoughts per day

9. • You use your entire brain, not just 10% as is often rumored
• Your brain recognizes your touch, so you can’t tickle yourself
Fascinating Facts

10. Fascinating Facts
• The figure of neurons present in the brain is approximately 100
billion, which is about 15 times of the overall human
population on earth
• Dreaming requires more brain activity than any waking
function

11. Fascinating Facts
• Nerves on the right side of the body connect to the left side of
the brain
• Nerves on the left side of the body connect to the right side of
the brain

12. Conclusion
• The brain is a miraculous creation of Allah s.w.t
• It is a huge factory of thoughts
• Cannot be compared to any other form of electrical device
Computational Power

13. References
• A book: The Digital Turn: How the Internet Transforms Our
Existence
• http://whatthafact.com/interesting-facts-about-brain/
• http://www.amnh.org/exhibitions/past-exhibitions/brain-the-
inside-story/brain-introduction
• http://science.howstuffworks.com/life/inside-the-
mind/human-brain/brain.htm