Place These Steps of the Action Potential in the Correct

question 69

Multiple Choice

Place these steps of the action potential in the correct order.
1) Sodium ions channels return to the resting state and repolarization continues.
2) Voltage-gated sodium ion channels activate,sodium ions enter,and the axon section depolarize
3) As potassium ion channels return to resting state,the axolemma may hyperpolarize before retur to the resting membrane potential.
4) A local potential depolarizes the axolemma of the trigger zone to threshold.
5) Sodium ion channels inactivate,and voltage-gated potassium ion channels activate,so sodium i stop entering and potassium ions leave,beginning repolarization.

• A)2,4,5,1,3
• B)4,2,5,1,3
• C)4,2,3,5,1
• D)4,2,1,3,5

Understand the principles of learning as they apply to behavior modifications.

Identify key figures in the development of behavior therapy and counterconditioning.

Recognize and understand the methods and purposes of exposure therapies.

Learn the process of systematic desensitization and its application in reducing anxiety.

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