Question

What structure provides the pathway for the movement of electrical current between the cells of the conduction pathway and the ventricular myocytes?

A) Desmosomes
B) Sodium channels
C) Gap junctions
D) Potassium channels
E) Funny channels

Answer 1

Gap junctions provide the pathway for electrical currents between the conduction pathway cells and the ventricular myocytes, allowing for coordinated heart contraction.

Step-by-step explanation:

The structure that provides the pathway for the movement of electrical current between the cells of the conduction pathway and the ventricular myocytes is C) Gap junctions. Gap junctions develop from a set of proteins called connexins in the plasma membrane that form a connexon. When connexons form channels with aligned pores ('doughnut holes') between adjacent cardiac muscle cells, they facilitate the quick and efficient transmission of electrical signals, enabling the heart muscle cells to contract in unison, thus ensuring the coordinated contraction of the heart.