Question

The number of mitochondria in cardiac muscles is

• A. More than other muscle fibres
• B. Less than other muscle fibres
• C. Equal to other muscle fibres
• D. None of the above

Answer 1

The correct option is A More than other muscle fibres

Cardiac muscle cells or cardiomyocytes are the muscle cells (myocytes) that make up the cardiac muscle. Cardiomyocytes have a high mitochondrial density in comparison to other muscles fibre, which allows them to produce adenosine triphosphate (ATP) quickly, making them highly resistant to fatigue.

Hence the correct option is A.