Question

Difference between fibres of voluntary and cardiac muscles

Answer 1

Answer:

Voluntary muscle is responsible for causing movements of the skeleton at joints. It is innervated by the somatic nervous system. Voluntary muscle is striated and contracts quickly and powerfully but tires quickly.

Cardiac muscle is found in the heart and can be divided into three sub-types of muscle: atrial muscle, ventricular muscle, and specialised excitatory and conductive muscle fibres. Cardiac muscle is myogenic meaning muscle fibres can stimulate contractions without needing input from a nerve impulse. Cardiac muscle is striated and contracts powerfully though out the life without tiring.