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The Nervous System

The Nervous System. By: Mr. Hunter. What makes up your nervous system?. Central Nervous System. Brain and spinal cord Responds to all messages coming from the peripheral nervous system Acts as a _____ center. CNS. Peripheral Nervous System.

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The Nervous System

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  1. The Nervous System By: Mr. Hunter

  2. What makes up your nervous system?

  3. Central Nervous System • Brain and spinal cord • Responds to all messages coming from the peripheral nervous system • Acts as a _____ center

  4. CNS

  5. Peripheral Nervous System • Uses nerves to carry information between your body and the ___

  6. PNS

  7. Neurons • A nerve cell that is specialized to transfer messages in the form of fast-moving energy • Dendrites: short branched sections of the cell that receive information • Axons: extensions of a neuron that carry information away from the cell

  8. 2 types of Neurons • _____ : gather information of what is happening in and around your body • _____: send impulses from the brain and spinal cord to other systems

  9. Sensory Neurons • Touch • Taste • Smell • Sight • Sounds

  10. Motor Neurons • Muscles • Glands

  11. The Brain • As you might imagine, larger animals have larger brains. However, this does not mean that animals with larger brains are smarter than animals with smaller brains. For example, a larger brain is necessary to control larger muscles in larger animals and a larger brain is necessary to process more sensory information from the skin in larger animals - this has nothing to do with intelligence.

  12. Brain Sizes

  13. Your brain is divided into _____ .

  14. Frontal • Reasoning • Planning • Parts of Speech • Movement • Emotions • Problem-Solving

  15. Parietal Lobe Perception of stimuli related to • Touch • Pressure • Temperature • Pain

  16. Temporal Lobe • Hearing • Memory (hippocampus)

  17. Occipital Lobe • Vision

  18. The Cerebrum • Largest part of your brain • Where you think and where your memories are stored • Allows you to use your five senses • Has two halves called _____

  19. The Brain

  20. Cerebellum • Controls skeletal muscles and joints • In charge of _____

  21. Medulla • Connected to your spinal cord • Controls the circulatory system • Controls the respiratory system

  22. Hypothalmus The hypothalamus controls • body temperature • hunger • thirst • fatigue • anger

  23. Spinal Cord • Big as your thumb • Made of neurons and axons • Carries all information to and from the brain • _____ protect the nerves in your spinal cord

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