Chapter 3 for posting

Chapter 3 for posting - The Biology of Mind and Behavior...

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The Biology of Mind and Behavior The neuron and its parts Drugs and their actions The Brain and its parts Genetics
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The Neuron The basic unit of the nervous system Receives signals from neurons or sensory organs Processes information Sends signals to other neurons, muscles, or organs The brain contains one hundred billion neurons
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The Neuron The basic unit of the nervous system Receives signals from neurons or sense organs Processes signals Sends signals to other neurons, muscles, or organs The brain contains 100 billion neurons
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The Neuron Sensory neuron Motor neuron Interneuron Brain circuit: A set of neurons that affect one another
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The Neuron: Structure
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Neural Impulses Resting potential More positively charged ions outside than inside Action potential: “Firing” Threshold exceeded Flow of ions through channels in membrane All-or-none law Myelin Acts as an insulator Allows signal to travel more efficiently Multiple sclerosis (MS): deteriorated myelin
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Demo: How Fast Are Neurons?
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Is the brain the single most complex object in the universe? 100,000,000,000 (100 billion) neurons
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Chapter 3 for posting - The Biology of Mind and Behavior...

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