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Nervous system

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Transcript

  • 1. GRADE 6 POWER POINT PRESENTATION Gaudete Study Center, Inc. 1st Quarter topic Unit 2 Lesson 1
  • 2. Good morning & Listen carefully
  • 3. NERVOUS SYSTEM
  • 4. Role of the nervous system  It is the most complicated part and highly organized system in the human body.  Nervous system is divided into 2 parts.  CNS  PNS
  • 5. Parts of a neuron
  • 6. Stimulus & Response  Stimulus – agent factor that provokes interest, enthusiasm, or excitement.  Response – reaction of an organism.
  • 7. Stimulus and response
  • 8. What is your response?
  • 9. What is your response?  We will going to …
  • 10. 3 types of neurons
  • 11.  Sensory neuron – (skin, eyes, nose, ears & tongue)  Interneuron – (brain & spinal cord)  Motor neuron – (muscles & glands)
  • 12. synapse  The tiny of microscopic space between two neurons is called synapse
  • 13. Glial cells  Specialized cells  These cells serve as supportive, nutr itive, and service facility cells for neurons so that they can function well.
  • 14. Node of Ranvier  The gap within a myelinated sheath axon is called…