Which Is the Incorrect Pairing Between Phase of the Action

question 46

Multiple Choice

Which is the incorrect pairing between phase of the action potential of ventricular muscle fibers and event that occurs within the phase?

• A) Rising phase: opening of voltage-gated Na⁺ channels
• B) Falling phase: closing of K⁺ channels
• C) Plateau phase: prolonged opening of voltage-gated Ca²⁺ channels
• D) Falling phase: closure of Ca²⁺ channels
• E) Rising phase: closure of K⁺ channels

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Definitions:

Magnetic Fields

Invisible fields that exert a force on substances that are sensitive to magnetism, including ferromagnetic materials and moving electric charges.

Experimental Procedure

A methodical approach carried out with the intention of verifying, falsifying, or establishing the validity of a hypothesis.

ECT

Electroconvulsive Therapy, a psychiatric treatment in which seizures are electrically induced in patients to provide relief from mental disorders.

VNS

Vagus Nerve Stimulation, a medical treatment that involves delivering electrical impulses to the vagus nerve to treat conditions like epilepsy and depression.