45 Organization Of The Nervous System, Basic Functions Of Synapses, And Neurotransmitters

Front 1

Comparison of the Nervous System with a Computer

Back 1

Types of Synapses-Chemical and Electrical

Front 2

Physiologic Anatomy of the Synapse

Presynaptic Terminals

Back 2

Mechanism by Which an Action Potential Causes Transmitter Release from the Presynaptic Terminals-Role of Calcium Ions

Front 3

Action of the Transmitter Substance on the Postsynaptic Neuron-Function of "Receptor Proteins"

Back 3

Excitatory or Inhibitory Receptors in the Postsynaptic Membrane

Front 4

Chemical Substances That Function as Synaptic Transmitters

Small-Molecule, Rapidly Acting Transmitters

Back 4

Neuropeptides

Front 5

Electrical Events During Neuronal Excitation

Resting Membrane Potential of the Neuronal Soma

Back 5

Concentration Differences of Ions Across the Neuronal Somal Membrane

Front 6

Uniform Distribution of Electrical Potential Inside the Soma

Back 6

Effect of Synaptic Excitation on the Postsynaptic Membrane-Excitatory Postsynaptic Potential

Front 7

Generation of Action Potentials in the Initial Segment of the Axon Leaving the Neuron-Threshold for Excitation

Back 7

Electrical Events During Neuronal Inhibition


Effect of Inhibitory Synapses on the Postsynaptic Membrane-Inhibitory Postsynaptic Potential

Front 8

Presynaptic Inhibition

Back 8

Time Course of Postsynaptic Potentials

Front 9

"Spatial Summation" in Neurons-Threshold for Firing

Back 9

Temporal Summation" Caused by Successive Discharges of a Presynaptic Terminal

Front 10

Facilitation" of Neurons

Back 10

Special Functions of Dendrites for Exciting Neurons

Front 11

Relation of State of Excitation of the Neuron to Rate of Firing

Back 11

Fatigue of Synaptic Transmission

Front 12

Effect of Acidosis or Alkalosis on Synaptic Transmission

Back 12

Effect of Hypoxia on Synaptic Transmission

Front 13

Effect of Drugs on Synaptic Transmission

Back 13

Synaptic Delay

Front 14

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Back 14

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Front 15

Types of Sensory Receptors and the Stimuli They Detect

Back 15

Modality of Sensation-The "Labeled Line" Principle

Front 16

Mechanisms of Receptor Potentials

Back 16

Receptor Potential of the Pacinian Corpuscle-An Example of Receptor Function

Front 17

Mechanisms by Which Receptors Adapt

Back 17

Slowly Adapting Receptors Detect Continuous Stimulus Strength-The "Tonic" Receptors

Front 18

Rapidly Adapting Receptors Detect Change in Stimulus Strength-The "Rate Receptors," "Movement Receptors," or "Phasic Receptors."

Back 18

Importance of the Rate Receptors-Their Predictive Function

Front 19

General Classification of Nerve Fibers

Back 19

Spatial Summation

Front 20

Temporal Summation

Back 20

Relaying of Signals Through Neuronal Pools

Front 21

Prolongation of a Signal by a Neuronal Pool-"Afterdischarge

Back 21

Continuous Signal Output from Some Neuronal Circuits

Front 22

Rhythmical Signal Output

Back 22

Inhibitory Circuits as a Mechanism for Stabilizing Nervous System Function

Front 23

Synaptic Fatigue as a Means of Stabilizing the Nervous System

Back 23

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