Lecture 3

Lecture 3 - Lecture 3: Neuroscience and Behavior Basics:...

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Lecture 3: Neuroscience and Behavior Basics: Two types of cells: 1. Neurons : Specialized to rapidly respond to signals and quickly send signals of their own. 2. Glial : “Glue” together the neural networks and help communication Similarities 1. Myelin Sheath : Let’s some things in and keeps some things out. 2. Cell body : Contains the Nucleus that contains all the genetic information that determines how a cell functions 3. Mitochondria : Structures that turn oxygen and glucose into energy How do neurons communicate? I. Structure : Long, thin intertwining fibers allow for communication A. Two types of fibers: 1. Axons : Fibers that carry signals away from the cell body 2. Dendrites : Fibers that receive signals from the axons and carry signals to the cell body. II. Action Potentials : The Domino effect --A brief change in a neuron’s electrical charge A. Neurons generate electricity from an exchange of atoms 1. Ions : Charged molecules (+ or -) 2. Polarization :
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This note was uploaded on 01/30/2012 for the course PGS 101 taught by Professor Blan during the Fall '08 term at ASU.

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Lecture 3 - Lecture 3: Neuroscience and Behavior Basics:...

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