1. Nervous co-ordination

2. Objectives - CNS Describe the gross structure of the whole brain and spinal cord. Location and function of the; -Medulla oblongata -Cerebellum -Cerebral hemispheres -Hypothalamus.  Describe the functioning of the spinal reflex.

3. Structure of the brain and spinal cord

4. Structure and function

5. Spinal reflex

6. Objectives – nervous co-ordination in mammals. Appreciate the difference between nerves and hormones. Structure and function of different neurones. Understand nerve impulses and action potentials. Structure and function of a synapse. Understand the effect of drugs.

7. structure Myelination http://www.sensory-systems.ethz.ch/MultiMedia/actionp.swf

8. Types of neurones

9. Synapse http://www.bishopstopford.com/faculties/science/arthur/synapse.swf http://www.bishopstopford.com/faculties/science/arthur/synapse.swf

10. Depolarisation Cartoon of the whole process. http://www.brainu.org/actio n_potential_cartoon.swfhttp://www.brainu.org/actio n_potential_cartoon.swf Shows the wave action. http://schools.tdsb.on.ca/rh king/departments/science/b io/homeostasis/nervous_sy stem/action.movhttp://schools.tdsb.on.ca/rh king/departments/science/b io/homeostasis/nervous_sy stem/action.mov Short clip of depolriation. http://instruct.uwo.ca/biolog y/022/unit3/48-09- ActionPotential.movhttp://instruct.uwo.ca/biolog y/022/unit3/48-09- ActionPotential.mov

11. Drugs Caffeine Nicotine Opiates

12. Quiz 1.What structures make up the central nervous system? 2.What does the medulla oblongata do? 3.Where do you find cell bodies in the spinal cord? 4.Name 4 main structures of a nerve. 5.Which ion initiates the release of a neurotransmitter? 6.Name 1 neurotransmitter? 7.What happens in an action potential when K channels open? 8.What effect does opiates have?