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what is it?

nervous system. what is it?. composition:. 2 cell types. neurons. glia. neuron. VS. other body cells:. how similar?. how different?. - in function. - in structure. parts of neuron. - function. - structure. types of neurons. sensory neurons motor neurons interneurons.

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what is it?

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  1. nervous system • what is it? • composition: 2 cell types neurons glia

  2. neuron VS. other body cells: • how similar? • how different? - in function - in structure

  3. parts of neuron - function - structure

  4. types of neurons sensory neurons motor neurons interneurons

  5. neural communication ELECTRO-CHEMICAL PROCESS -excitatory or inhibitory messages -action potential -neurotransmitters

  6. neural communication ELECTROCHEMICAL PROCESS

  7. overview potassium + sodium + myelin myelin ELECTRICAL CHEMICAL movement of +/- charged ions neurotransmitter release & binding

  8. resting potential Inside of cell is negativerelative to the outside -70 mv action potential Inside of cell is momentarily positiverelative to the outside +30 mv

  9. ion channels sodium (Na+) potassium (K+) channels on axon

  10. types of polarization depolarization polarization hyperpolarization

  11. resting potential

  12. potassium + sodium + myelin myelin

  13. saltatory conduction

  14. neurotransmitters Bind to receptors on dendrites of next neuron & cause excitatory (+) or inhibitory (-) signals. Then, reuptake.

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