Figure 39.1 -Answer the Question Using the Accompanying Figure. at Which Point

question 8

Multiple Choice

Figure 39.1
-Answer the question using the accompanying figure. At which point in this action potential diagram does the onset of Na⁺channel inactivation stop the inward flow of Na⁺?

• A) A
• B) B
• C) C
• D) D
• E) E

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Definitions:

Currents

The flow of electric charge across a conductor or through an electrolyte, measured in amperes (A), essential in electrical and electronic circuits.

Superposition Theorem

The current in any branch of a circuit supplied by a multipower source can be determined by finding the current produced in a particular branch by each of the individual power sources acting alone.

Kirchhoff's Current Law

Kirchhoff's Current Law states that the total current entering a junction or node in an electrical circuit is equal to the total current leaving that junction, preserving the principle of charge conservation.

Algebraic Sum

The result of adding or subtracting a sequence of numbers or algebraic expressions according to mathematical rules.