The Following Are the Main Steps in the Generation of an Action

question 21

Multiple Choice

The following are the main steps in the generation of an action potential. 1.Sodium channels are inactivated.
2) Voltage-gated potassium channels open and potassium moves out of the cell,initiating repolarization.
3) Sodium channels regain their normal properties.
4) A graded depolarization brings an area of an excitable membrane to threshold.
5) A temporary hyperpolarization occurs.
6) Sodium channel activation occurs.
7) Sodium ions enter the cell and depolarization occurs.
The proper sequence of these events is

• A)4,6,7,3,2,5,1.
• B)4,6,7,1,2,3,5.
• C)6,7,4,1,2,3,5.
• D)2,4,6,7,1,3,5.
• E)4,2,5,6,7,3,1.

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Definitions:

Anticipatory Pain Response

Stimuli associated with painful events produce a fear response, which motivates escape from the painful environment.

Punishment

An unpleasant consequence given to reduce the occurrence of a particular behavior.

Stimulus Response Bond

The connection formed between a specific stimulus and a specific response through conditioning.

Matching Law

A principle in behavioral psychology stating that the proportion of responses directed toward an option matches the proportion of reinforcements obtained from that option.