APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -The gap junctions permit action potentials in the autorhythmic cardiac fibers to move from one cell to the adjacent cell. Gap junctions serve as channels to facilitate the movement of substances from one cell of the heart to another. They are responsible for the conduction of impulses.

Detailed explanation-2: -Cardiac autorhythmic cells in the intrinsic conduction system generate action potentials that spread in waves to all the cardiac contractile cells. This action causes a coordinated heart contraction.

Detailed explanation-3: -Adjacent to the intercalated discs are the gap junctions, which allow action potentials to directly spread from one myocyte to the next. More specifically, the disks join the cells together by both mechanical attachment and protein channels.

Detailed explanation-4: -Action potentials pass from one myocardial cell to another through areas of low electrical resistance called A. gap junctions. Gap junctions are essentially proteins that connect the cytoplasm of one myocardial cell to another. This allows for the quick propagation of action potentials between myocardial cells.