1. (noun) the muscle tissue of the heart; adapted to continued rhythmic contraction

• cardiac muscle

1. (noun) the muscle tissue of the heart; adapted to continued rhythmic contraction

• atrioventricular bundle
• atrioventricular trunk
• bundle of his
• truncus atrioventricularis
• atrioventricular node
• cardiac pacemaker
• pacemaker
• sa node
• sinoatrial node
• myocardium
• papillary muscle
• purkinje fiber
• purkinje network
• purkinje's system
• purkinje's tissue

1. (noun) the muscle tissue of the heart; adapted to continued rhythmic contraction

• muscle
• muscular tissue