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How the Nervous System Works

How the Nervous System Works. HB&H Chapter 7.1 Pages 190-194. Jobs of the Nervous System. This system includes your brain , spinal cord and the nerves throughout your body Also includes sense organs like eyes and ears. Jobs of the Nervous System.

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How the Nervous System Works

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  1. How the Nervous System Works HB&H Chapter 7.1 Pages 190-194

  2. Jobs of the Nervous System • This system includes your brain, spinal cord and the nerves throughout your body • Also includes sense organs like eyes and ears.

  3. Jobs of the Nervous System • Your nervous system operates in 3 different ways: • Receiving Information • Responding to Information • Maintaining Homeostasis • What is a Stimulus? A Response? • Stimulus: a change in environment • Response: reaction to a stimulus • Homeostasis: stability of an organism’s internal environment.

  4. Neurons • Neuronsare cells that carry information through your nervous system • The information neurons carry are called nerveImpulses • Impulses travel up to 120 meters per second.

  5. Neurons Structure • The impulse is then sent awayfrom the Neuron through an Axon(like arteries). • Neurons have a nucleus inside a Cell Body • Impulses come to the Cell Body fromDendrites

  6. Neuron Types

  7. Exit Pass • What is a Neuron and what do they carry?

  8. What to Work On • Read Section 7.1 (pages 190-194) • Answer the Section Review Questions (page 194, #’s 1-3) DUE: Friday, February 17th

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