Question

cardiac muscle is a contractile tissue present only in the heart, what role do communication junctions play in such tissues?​

Answer 1

Answer:

In cardiac muscle tissue, the communication junctions (intercalated discs) at some fusion points allow the cells to contract as a unit. Reason: When one cell of cardiac muscle tissue recieves a signal to contract, its neighbours are also stimulated to contract

Answer 2

Cardiac muscle cells are equipped with three distinct types of intercellular junction—gap junctions, “spot” desmosomes, and “sheet” desmosomes (or fasciae adherentes)—located in a specialized portion of the plasma membrane, the intercalated disk.