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The nervous system
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The nervous system

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  • 1. THE NERVOUS SYSTEM 1 .- FUNCTIONS OF THE NERVOUS SYSTEM 2.- THE BRAIN 3.- THE SPINAL CORD 4.- THE NERVES ENDINGS
  • 2. Functions of the nervous system
    • 1.- It let us perceive what happens around us.
    • 2.- It let us form responses, like mouvements.
    • 3.- It co-ordinates all the organs and systems in the human body.
    • 4.- The brain, the spinal cord and the nerves form the nervous system
  • 3. THE BRAIN T he brain is in the head. The bones of skull protect it. Several organs form the brain: 1.- the cerebrum, 2.- the cerebellum 3.- and the brain stem
  • 4. 1.- The cerebrum It is the biggest organ. It controls all voluntary actions (speaking too!!) It also stores data and experiences. It is related to feelings.
  • 5. 2.- The cerebellum It is located below the cerebrum. It co-ordinates movements. It controls balance .
  • 6. 3.- The Brain Stem
    • It communicates the brain with the spinalcord.
    • It controls many organs in the human body (the heartbeats and the movements when we breathe)
  • 7. THE SPINAL CORD It is in the back. It goes from the top to the bottom. It is protected by the vertebrae of the spinal cord. It is shaped like a cilinder. It is attached to the brain stem. Many nerves leave the spinal cord. They go to the organs and extremities. It controls involuntary movements (reflexes )
  • 8. NERVES They are shaped like long fibres. They communicate the brain and the spinal cord with the rest of the human body. 1.- Sensitive nerves: carry information from the organs to the cerebrum and the spinal cord (auditory nerve) 2.- Motor nerves: carry information from the brain and the spinal cord to the organs They co-ordinate the function of the whole body
  • 9.  
  • 10. In your opinion, what Homer’s brain can co-ordinate?

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