Cardiac muscle is one of three types of muscles in the human body, and is found in the walls of the heart.
Cardiac muscle is made up of specialized cells called cardiomyocytes.
Cardiac muscles are striated muscles, which are responsible for keeping our heart functioning by pumping and circulating blood throughout the body and performing muscular involuntary movements.
They are involved in continuous rhythmic contraction and relaxation.
Final Answer: The muscles of heart are called as Cardiac Muscles.