Refer to the graph below of ventricular muscle fiber membrane activity. Which of the following statements is false?
A) The activity shown in curve 1 is initiated by the opening of voltage-gated sodium channels.
B) The activity shown in curve 2 depicts the relative permeability of the membrane to sodium ions.
C) Curve 1 depicts an action potential for ventricular muscle.
D) The activity shown in curve 3 depicts the relative permeability of the membrane to potassium ions.
E) The extended plateau of curve 1 is due to sustained opening of voltage-gated calcium channels.

Question

Refer to the graph below of ventricular muscle fiber membrane activity. Which of the following statements is false? 
A) The activity shown in curve 1 is initiated by the opening of voltage-gated sodium channels. 
B) The activity shown in curve 2 depicts the relative permeability of the membrane to sodium ions. 
C) Curve 1 depicts an action potential for ventricular muscle. 
D) The activity shown in curve 3 depicts the relative permeability of the membrane to potassium ions. 
E) The extended plateau of curve 1 is due to sustained opening of voltage-gated calcium channels.

Quizplus · Accepted Answer

The Answer of Refer to the graph below of ventricular muscle fiber membrane activity. Which of the following statements is false? 
A) The activity shown in curve 1 is initiated by the opening of voltage-gated sodium channels. 
B) The activity shown in curve 2 depicts the relative permeability of the membrane to sodium ions. 
C) Curve 1 depicts an action potential for ventricular muscle. 
D) The activity shown in curve 3 depicts the relative permeability of the membrane to potassium ions. 
E) The extended plateau of curve 1 is due to sustained opening of voltage-gated calcium channels.

Refer to the Graph Below of Ventricular Muscle Fiber Membrane