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The Nervous System

The Nervous System. Terms to Learn. Peripheral nervous system Central nervous system Neuron Nerve Brain Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006. The Nervous System. Peripheral Nervous System.

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The Nervous System

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  1. The Nervous System

  2. Terms to Learn • Peripheral nervous system • Central nervous system • Neuron • Nerve • Brain Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

  3. The Nervous System

  4. Peripheral Nervous System • The peripheral nervous system (PNS) is all of the parts of the nervous system except for the brain and the spinal cord. • Two parts: • Sensory part (sensory neurons) • Motor part (motor neuron) Neuroscience For Kids - Explore the nervous system Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

  5. Peripheral Nervous System

  6. Peripheral Nervous System Cont… Somatic Autonomic Autonomic nerves do not need your conscious control. Controls body functions that you do not think about, such as digestion and heart rate. Two parts: Sympathetic and parasympathetic nervous system. • Somatic nerves are under your control • These are the neurons that stimulate skeletal muscles • Control voluntary movements, such as writing, talking, smiling, or jumping. Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

  7. Central Nervous System • The central nervous system (CNS) is the brain and spinal cord. • The Cerebrum- The largest part of your brain. • The Cerebellum-Lies beneath the cerebrum. • The Medulla-Connects to the spinal cord. Your Gross and Cool Body: Nervous System Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

  8. Central Nervous System

  9. Central Nervous System • Brain • is the mass of nerve tissues that is the main control center of the nervous system. • Spinal Cord • Made of neurons and bundles of axons • Communicates with your peripheral nervous system • Spinal cord injuries block information to and from the brain. A Science Odyssey: You Try It: Probe the Brain Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

  10. Review • What is the peripheral nervous system? • What is the central nervous system? IMCPL Kids' Info Guide: Nervous System

  11. Neuron

  12. Neuron Structure • A neuron is a specialized nerve cell that transfers messages in the form of fast-moving electrical energy. Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

  13. Nerve

  14. Nerve Structure • A nerve is a collection of nerve fibers (axons) through which impulses travel between the central nervous system and other parts of the body. Nervous System - Science for Kids! Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

  15. Review What is this? What is this?

  16. Activity Sit in a chair with one arm in a “handshake” position. Your partner should stand facing you, holding a meterstick vertically. The stick should be positioned so that it will fall between your thumb and fingers. Tell your partner to let go of the meterstick without warning you. Catch the stick between your thumb and fingers. Your partner should catch the meterstick if it tips over. Record the number of centimeters that the stick dropped before you caught it. That distance represents your reaction time. Repeat steps 1-3 three times. Calculate the average distance. Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

  17. Concept Map Instructor: Sarah Jones Topic: The Nervous System Name: ____________________ Date: ______________ Complete the following map by filling in the squares with the information on the powerpoint:

  18. References Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006. Chudder, E.H. (1996-2006). Neuroscience for kids. Retrieved February 16, 2009, from http://faculty.washington.edu/chudler/introb.html WGBH. (1998). A science odyssey. Retrieved February 16, from http://www.pbs.org/wgbh/aso/tryit/brain/ IMCPL. (2009). IMCPL kids’ info guild : Nervous system. Retrieved February 16,2009, from http://www.imcpl.org/kids/guides/health/nervoussystem.html Carr, K. (1998-2007). Nervous system-Science for kids! Retrieved February 16, 2009, from http://www.historyforkids.org/scienceforkids/biology/animals/nervous/ Discovery Communications Inc. (2000). Your gross and cool body : Nervous system. Retrieved February 16, 2009, from http://yucky.discovery.com/flash/body/pg000136.html

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