Question

what structural component of cardiac muscle cells allows for electrical current to flow from cell to cell?
a tight junctions
b gap junctions
c adhesion junction

Explanation:

Gap junctions are channels between adjacent cells that allow for the passage of ions, small molecules, and electrical current. Tight junctions seal cells together to prevent leakage of substances between them. Adhesion junctions provide mechanical strength and hold cells together. Since the question is about allowing electrical current flow between cardiac muscle cells, gap junctions are the correct structural component.

Answer:

B. Gap junctions