11
Fundamentals of the Nervous
System and Nervous Tissue
Functions and Divisions of the Nervous
System
(p. 387)
Histology of Nervous Tissue
(pp. 387–395)
Neuroglia (pp. 388–390)
Neurons (pp. 390–395)
Membrane Potentials
(pp. 395–407)
Basic Principles of Electricity (pp. 395–397)
The Resting Membrane Potential
(p. 397)
Membrane Potentials That Act as
Signals (pp. 397–407)
The Synapse
(pp. 407–414)
Electrical Synapses (p. 407)
Chemical Synapses (pp. 407–410)
Postsynaptic Potentials and Synaptic
Integration (pp. 410–414)
Neurotransmitters and Their
Receptors
(pp. 414–421)
Classification of Neurotransmitters by
Chemical Structure (pp. 414–417)
Classification of Neurotransmitters by
Function (pp. 417–419)
Neurotransmitter Receptors
(pp. 420–421)
Basic Concepts of Neural Integration
(pp. 421–423)
Organization of Neurons:
Neuronal Pools (p. 421)
Types of Circuits (p. 421)
Patterns of Neural Processing (pp. 421–423)
Developmental Aspects of Neurons
(pp. 423–424)
386
Y
ou are driving down the freeway, and a horn blares to your right.
You immediately swerve to your lef. Charlie leaves a note on the kitchen table:
“See you later. Have the stuff ready at 6.” You know the “stuff” is chili with taco
chips. You are dozing but you awaken instantly when your inFant son cries sofly.
What do these three events have in common? Tey are all everyday examples oF the
Functioning oF your nervous system, which has your body cells humming with activity
nearly all the time.
Te
nervous system
is the master controlling and communicating system oF the body.
Every thought, action, and emotion reflects its activity. Its cells communicate by electrical and
chemical signals, which are rapid and specific, and usually cause almost immediate responses.
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