Select the Correct Statement About the Function of Myocardial Cells

question 36

Multiple Choice

Select the correct statement about the function of myocardial cells.

• A) The influx of potassium ions from extracellular sources is the initiating event in cardiac muscle contraction.
• B) The refractory period in skeletal muscle is much longer than that in cardiac muscle.
• C) The entire heart contracts as a unit or it does not contract at all.
• D) Cardiac muscle cells are innervated by sympathetic, parasympathetic, and somatic nerve fibers so that the nervous system can increase heart rate.

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Personality

A collection of qualities and traits that together form a distinctive individual identity.

Inventory

In psychology, a questionnaire or assessment tool used to measure and evaluate individual traits, behaviors, or attitudes.

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Internal psychological processes that involve thoughts and feelings within an individual, affecting their behavior and attitudes.

Personality

The combination of characteristics or qualities that form an individual's distinctive character, influencing behaviors, thoughts, and emotions.