Gap junctions
A) connect veins and arteries.
B) are found in white blood cells.
C) prevent the backflow of blood from the ventricles to the atrium.
D) allow the rapid passage of electrical signals among heart cells.

Question

Quizplus · Accepted Answer

Gap junctions are specialized intercellular connections that facilitate the direct transfer of ions and small molecules between neighboring cells, allowing for rapid communication. In the heart, they are crucial for the propagation of electrical signals that coordinate heartbeats, enabling heart cells to contract in a synchronized manner.

Gap Junctions