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Lecture 2

PSY 2301 Lecture 2: chapter3(1)


Department
Psychology
Course Code
PSY 2301
Professor
Andra Smith
Lecture
2

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What Are the Units of Nervous System
Function?
Cells of the Nervous System
Internal Structure of a Cell
Genes, Cells, and Behaviour

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Cells of the Nervous System
Debate in the Early 1900s
Golgi
The nervous system is composed of a network
of interconnected fibers: a “nerve net”
Cajal
Nervous system is made of discrete cells
Neuron Hypothesis
Neurons are the units of brain function

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Cells of the Nervous System
Neurons
Three Basic Subdivisions
Dendrites
Gather information from other neurons
Cell Body or Soma
Core region; contains the nucleus
Integrates the information
Axon
Carries information to be passed on to other
cells
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