Question

zigzag thickening in cardiac muscle​

Answer 1

Answer:

The zig-zag thickness in cardiac muscle is Intercalated discs.

Answer 2

                        Zigzag thickening in cardiac muscle​

• The zigzag thickening in cardiac muscles is due to the presence of unique microscopic wave-like patterned intercalated discs in the cardiac muscle cells.
• Intercalated discs are supported by junctions like the gap junction, desmosomes and fascia adherens. They interconnect the cardiac muscle fibers at the gap junctions.
• The main function of the intercalated discs is to coordinate cardiac muscle contraction and transmission of action potential from one cell to another through an electric coupling.
• These discs aid in contraction of heart muscles by depolarization of the muscles and aids in working of the heart as a single organ.