Which Statement Concerning Action Potentials in the Heart Is Correct

question 12

Multiple Choice

Which statement concerning action potentials in the heart is correct?

• A) The rising phase of the action potential in cardiac autorhythmic cells is due to a rapid Ca²⁺ influx.
• B) The rising phase of the action potential in cardiac contractile cells is due to a rapid K⁺ influx.
• C) The plateau phase of the action potential in cardiac contractile cells is due to a rapidCa²⁺ influx.
• D) The plateau phase of the action potential in cardiac contractile cells is due to a rapid K⁺ influx.

Understand the effective strategies to reduce stage fright and improve presentation confidence.

Identify and use verbal organizational cues in speech to clarify the structure and main points.

Recognize and apply different organizational patterns suitable for various types of presentations.

Learn techniques for recovering from errors during presentations to maintain audience engagement.

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Definitions:

Rehearse Information

The act of practicing or mentally reviewing information repeatedly to enhance memory retention.

Sensory Memory

The shortest-term element of memory, which acts as a buffer for stimuli received through the five senses.

Long-Term Memory

The phase of the memory process that is capable of storing information for prolonged periods, from hours to a lifetime.

Incoming Information

Data or facts received or perceived, often requiring processing or analysis.