When a cardiac muscle cell receives a signal to contract, its neighbours are also stimulated to contract. This is due to

Question

When a cardiac muscle cell receives a signal to contract, its neighbours are also stimulated to contract. This is due to (A) Desmosomes (B) Intercalated disc (C) Tight junctions (D) Sarcoplasm

Tardigrade Admin · Accepted Answer

Unique junctions called intercalated discs (gap junctions) link the cells together and define their borders. Intercalated discs are the major portals for cardiac cell-to-cell communication, which is required for coordinated muscle contraction and maintenance of circulation.

Q. When a cardiac muscle cell receives a signal to contract, its neighbours are also stimulated to contract. This is due to

Desmosomes

Intercalated disc

Tight junctions

Sarcoplasm

Unique junctions called intercalated discs (gap junctions) link the cells together and define their borders. Intercalated discs are the major portals for cardiac cell-to-cell communication, which is required for coordinated muscle contraction and maintenance of circulation.