Question

Describe the cardiac muscle fibre class 11 biology ​

Answer 1

Cardiac muscle fibres are present in the heart and control cardiac activity.

• Cardiac muscle is a striated muscle that is present only in the heart.
• Cardiac muscle fibres have a single nucleus, are branched, and joined to one another by intercalated discs that contain gap junctions for depolarization between cells and desmosomes to hold the fibres together when the heart contracts.
• Cardiac muscle fibres are shorter than skeletal muscle fibres and usually contain only one nucleus, which is located in the central region of the cell.