The Rapid Depolarization Phase of the Action Potentials of Myocardial

question 60

Multiple Choice

The rapid depolarization phase of the action potentials of myocardial contractile cells is due to which ion(s) ?

• A) Ca²⁺ only
• B) K⁺ only
• C) Na⁺ only
• D) both Ca²⁺ and K⁺
• E) both Na⁺ and K⁺

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Definitions:

Asserted

To declare affirmatively; to state as a fact.

Connective

In logic and linguistics, a word or phrase that links sentences or clauses, such as and, or, but.

Clause

A logical unit within a sentence, containing a subject and a predicate, which may stand alone or function as part of a larger sentence.

Predicate

The segment of a sentence or clause which includes a verb and provides information about the subject.