nervous co ordination
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Nervous co-ordination. 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.

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objectives cns
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.
objectives nervous co ordination in mammals
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.
structure
structure
  • Myelination
  • http://www.sensory-systems.ethz.ch/MultiMedia/actionp.swf
synapse http www bishopstopford com faculties science arthur synapse swf
Synapsehttp://www.bishopstopford.com/faculties/science/arthur/synapse.swfSynapsehttp://www.bishopstopford.com/faculties/science/arthur/synapse.swf
depolarisation
Depolarisation

Cartoon of the whole process.

  • http://www.brainu.org/action_potential_cartoon.swf

Shows the wave action.

  • http://schools.tdsb.on.ca/rhking/departments/science/bio/homeostasis/nervous_system/action.mov

Short clip of depolriation.

  • http://instruct.uwo.ca/biology/022/unit3/48-09-ActionPotential.mov
drugs
Drugs
  • Caffeine
  • Nicotine
  • Opiates
slide12
Quiz
  • What structures make up the central nervous system?
  • What does the medulla oblongata do?
  • Where do you find cell bodies in the spinal cord?
  • Name 4 main structures of a nerve.
  • Which ion initiates the release of a neurotransmitter?
  • Name 1 neurotransmitter?
  • What happens in an action potential when K channels open?
  • What effect does opiates have?
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