Why Would Cardiac Muscles Have Longer Refractory Periods Than Skeletal

question 14

Multiple Choice

Why would cardiac muscles have longer refractory periods than skeletal muscles.Choose the best answer?

• A)to preserve the normal rhythm of the heart and prevent fatigue
• B)the muscle types contain different contractile proteins
• C)skeletal muscle is autorhythmic
• D)skeletal muscles have prolonged calcium influx
• E)cardiac muscle is not dependent on aerobic respiration to produce ATP

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Definitions:

Voluntary Responses

Actions that are undertaken intentionally and with awareness, as opposed to automatic or reflexive reactions.

Operant Conditioning

A method of learning that employs rewards and punishments for behavior, emphasizing the idea that behaviors are influenced by their consequences.

Controlled

In psychology, referring to cognitive processes that require conscious, deliberate thought or processes that are under an individual's deliberate control.

Reinforcement

In behavioral psychology, a process by which a behavior becomes more likely to occur due to the consequence that follows it, can be positive or negative.