Question

differentiate between the fibres of voluntary muscle and cardiac muscle

Answer 1

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 striatedand contracts powerfully thoughout the life without tiring.

Answer 2

VOLUNTARY MUSCLE:it is a form of striated muscle type rather than cardiac and smooth muscle.it is control under the voluntary system of somatic nervous system.it works quickly and it tires quickly.it is attached to bones by bundle of collagen fibres called tendons.

CARDIAC MUSCLE:it is also a striated or striped.it has dark and light bands when seen under microscope.it has a single nucleus in each band.it is made up of interlocking system.it has a many junctions.in the boody the heart is the only part of the body made an impulse without the help of the brain. ie. electric impulse.