the nervous system
TRANSCRIPT
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THE NERVOUS SYSTEM
1.- FUNCTIONS OF THE NERVOUS SYSTEM2.- THE BRAIN3.- THE SPINAL CORD4.- THE NERVES ENDINGS
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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
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THE BRAINTHE BRAIN
The 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
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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.
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2.- The cerebellum
It is located below the cerebrum.It co-ordinates movements.It controls balance.
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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)
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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)
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NERVESNERVESThey 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
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In your opinion, what Homer’s brain can co-ordinate?