The following are various components of the conducting system of the heart:
1) Purkinje cells
2) AV bundle
3) AV node
4) SA node
5) bundle branches
The sequence in which an action potential would move through this system is
A) 1, 4, 3, 2, 5.
B) 3, 2, 4, 5, 1.
C) 3, 5, 4, 2, 1.
D) 4, 3, 2, 5, 1.
E) 4, 2, 3, 5, 1.

Question

The following are various components of the conducting system of the heart: 
1) Purkinje cells
2) AV bundle
3) AV node
4) SA node
5) bundle branches
The sequence in which an action potential would move through this system is
A) 1, 4, 3, 2, 5.
B) 3, 2, 4, 5, 1.
C) 3, 5, 4, 2, 1.
D) 4, 3, 2, 5, 1.
E) 4, 2, 3, 5, 1.

Quizplus · Accepted Answer

The sequence in which an action potential would move through the conducting system of the heart is: SA node (4) → AV node (3) → AV bundle (2) → bundle branches (5) → Purkinje cells (1).

The Following Are Various Components of the Conducting System of the Heart