If the Pacemaker Cells in the SA Node Become More

question 65

Multiple Choice

If the pacemaker cells in the SA node become more permeable to potassium ions, the

• A) heart rate will increase.
• B) heart rate will decrease.
• C) cells will depolarize.
• D) cells will hyperpolarize.
• E) heart rate will decrease and cells will hyperpolarize.

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Definitions:

Behavior Therapy

A type of psychotherapy that focuses on changing undesirable behaviors.

Rational-Emotive Therapists

Therapists who apply the principles of rational-emotive therapy, which aims to resolve emotional and behavioral problems by confronting irrational beliefs.

Thoughts And Beliefs

Mental states or convictions held about oneself, others, or the world, whether true or false.

Classical Conditioning

Education that comes from associating an external environmental stimulus with a naturally present one.