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Science 6 th Chapter 11

Pages 187-201. Science 6 th Chapter 11. Nervous system is made of the… Brain Spinal cord Nerves Sense organs. 11.1 The Nervous System. Brain Spinal Cord Involved in all activities of the body. Central Nervous System. Nerves carry messages back and forth though out the body

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Science 6 th Chapter 11

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  1. Pages 187-201 Science 6th Chapter 11

  2. Nervous system is made of the… • Brain • Spinal cord • Nerves • Sense organs 11.1 The Nervous System

  3. Brain Spinal Cord Involved in all activities of the body Central Nervous System

  4. Nerves carry messages back and forth though out the body Sense organs are your eyes, ears, nose, tongue, skin Nerves and Sense Organs

  5. Certain parts of the body work without having to think • Lungs breathing • Heart beating • Food digesting • Size of your pupils in the eye • Goose bumps on your skin Automatic Control

  6. Neurons - Electrical messages sent from your brain to your nerve cells Each neuron is made of three parts – dendrite, cell body, axon 11.2 Nerve Cells

  7. Short fibers that spread out from the cell body Receive messages coming to the cell from other neurons Messages move from dendrite to cell body Dendrite

  8. Main part of the neuron Acts as a message center Usually lies within the spinal cord or brain Cell Body

  9. Long fibers of the neuron opposite the dendrite Sends messages from the cell to other neurons Axon

  10. Central Nervous System – consists of the brain and spinal cord 11.3 Central Nervous System

  11. Master of the nervous system Controls the entire body Weighs 3 pounds Has 10 billion nerve cells Uses 20% of the oxygen in your blood Skull protects the brain Facts about the Brain

  12. Largest part of the brain Center of intelligence and creativity Part through which we communicate with God Right half controls the left side of your body Left half controls the right side of your body Cerebral Cortex – controls movement, sight, hearing, taste, smell, and feel. Cerebrum

  13. Balance center of your body Helps coordinate your muscles Helps you keep your balance Cerebellum

  14. Connects brain and spinal cord Controls involuntary activities Breathing, heartbeat, digestion Medulla

  15. Made completely of nerves Allows the brain and body to communicate Controls reflexes Spinal cord

  16. Buckle your safety belt while driving Use a helmet when bicycling Don’t dive into shallow water Eat healthy foods Stay away from drugs and alcohol Stay away from harmful chemicals 11.4 Care of the Nervous System

  17. Perception – interpret messages, enables you to be aware of your surroundings Memory – stores and retrieves information, works better the more you use Imagination – creative thought, think about things you can’t see Logical Thinking – enables you to make decisions and solve problems 11.5 Kinds of Thinking

  18. Spiritual Thinking – your conscience, helps you tell from right and wrong, helps experience emotion, involves - love, faith, trust, courage, honor, and honesty Kinds of Thinking Cont.

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