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The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
The Central Nervous System / Brain
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The Central Nervous System / Brain

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This Powerpoint contains initial information concerning the CNS and the brain.

This Powerpoint contains initial information concerning the CNS and the brain.

Published in: Technology, Education
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  • 1. Its all in your head!.... Well mostly.
  • 2.  Bigger brains are smarter brains You only use about 10% of your brain Brain Myths Sleep aids memory formation You can grow new brain cells Hit or shit? Bad diets can cause brain damage Thinking bad things can make you sick You can be brain dead but remain alive The brain is the most complex structure in the known universe There is a you part of the brain – a bit that controls the rest The brain is partly made of fat No two nerve cells in your brain actually touch Your brain uses electricity to think Depression is a physiological disease
  • 3.  Bigger brains are smarter brains (only between species, sorry big heads don’t mean your smart!) You only use about 10% of your brain Sleep aids memory formation You can grow new brain cells Bad diets can cause brain damage Thinking bad things can make you sick You can be brain dead but remain alive The brain is the most complex structure in the known universe There is a you part of the brain – a bit that controls the rest The brain is partly made of fat No two nerve cells in your brain actually touch Your brain uses electricity to think Depression is a physiological disease
  • 4. Get a feel for the brain…. Adult brain weighs about 1.5kg It has the consistency of cooked oatmeal If spread out flat it would cover about 6 pages of the age newspaper You are born with all of the nerve cells you will ever have, about 100 billion Your brain grows connections between nerve cells, making your brain more dense Every single brain cell can form connections with around 10,000 other nerve cells
  • 5. Humans – the best brain!
  • 6. More Highly Evolved?
  • 7. The Human Brain The brain is the control center for all human behaviour, without understanding our brains and nervous systems we can never fully understand behaviour. Some scientists argue that all human behaviour can be traced to biological functioning. Our Brains are our most important organ, they make us who we are. The bigger an organisms cortex the more intelligent it seems to be – this is NOT true within species Whether or not the brain is the sole seat of consciousness it is most certainly part of the puzzle…… Learning and Memory involve physical changes in your brain!
  • 8. Does your brain look like this?
  • 9. The hemispheres of the Cerebral Cortex The corpus Callosum
  • 10. The hemispheres of the Cerebral Cortex The cortex is made up of two separate but linked hemispheres (halves) Each hemisphere (left or right) is responsible for movement and sensation in the opposite side of the body. Each hemisphere is also involved in specific functions i.e. the left side controls our ability to use and understand language The two hemispheres are linked by a bundle of nerves (neurons) called the Corpus Callosum
  • 11. The Cross over….  Left controls Right  Right controls Left  No one knows why so don’t ask!  This diagram is from the back  Note sexy yellow budgie smugglers
  • 12. The Lobes of the cortex
  • 13. The Lobes of the cortex Each hemisphere of the cortex can be divided further into 4 lobes (Frontal, Parietal, Occipital, Temporal) FPOT These lobes are also responsible for specific behaviours, i.e. the frontal lobes control emotional behaviour, planning etc. These Lobes also receive and processes information from a particular sense. Occipital lobes = visual information, Temporal lobes= Auditory (sound) Parietal lobes= somatosensory (body and skin) Frontal lobes. This lobe is involved in initiating movement of the body, They are the only lobes that do not process info from a specific sense are the
  • 14. The Lobes of the cortex These lobes cover both the left and right hemispheres – Note that hemispheric specialization still stands (eg. Left hemisphere predominately involved in language) Left frontallobe – speech production – motor movement in frontal lobe Left temporallobe – speech comprehension – auditory info in temporal
  • 15.  Read / skim through pages 177 – 182 and complete the following in your workbooks: L.A 4.1 => Questions 2,3,4,5 & 6 L.A 4.2 => Questions 1, 2 & 3
  • 16. The Four Lobes of the CerebralCortex Read from 182 – 198 and complete the following: L.A 4.3 – Complete in pencil in your textbook L.A 4.6 – Complete in pencil in your textbook L.A 4.7 – All questions (Question 2 – a rough sketch will do)

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