SIMILARITIES BETWEEN CARDIAC AND SKELETAL MUSCLES -

1. Both cardiac and skeletal muscles are made up of elongated fibres which have numerous myofibrils.
2. The myofibrils of cardiac muscle have the same structure as those skeletal muscle and are made up of actin and myosin filaments.
3. The cardiac and skeletal muscle fibres have dark and light bands.
4. The connective tissue framework and the capillary network around cardiac muscle fibres are similar to those in skeletal muscle.

SIMILARITIES BETWEEN CARDIAC AND SMOOTH MUSCLES -

1. Both cardiac and smooth muscles are uninucleate containing nucleus at the centre and are involuntary in function.