<P> Cardiac muscle ( heart muscle ) is an involuntary , striated muscle that is found in the walls and histological foundation of the heart , specifically the myocardium . Cardiac muscle is one of three major types of muscle , the others being skeletal and smooth muscle . These three types of muscle all form in the process of myogenesis . The cells that constitute cardiac muscle , called cardiomyocytes or myocardiocytes , predominantly contain only one nucleus , although populations with two to four nuclei do exist . The myocardium is the muscle tissue of the heart , and forms a thick middle layer between the outer epicardium layer and the inner endocardium layer . </P>
<P> Cardiac muscle ( heart muscle ) is an involuntary , striated muscle that is found in the walls and histological foundation of the heart , specifically the myocardium . Cardiac muscle is one of three major types of muscle , the others being skeletal and smooth muscle . These three types of muscle all form in the process of myogenesis . The cells that constitute cardiac muscle , called cardiomyocytes or myocardiocytes , predominantly contain only one nucleus , although populations with two to four nuclei do exist . The myocardium is the muscle tissue of the heart , and forms a thick middle layer between the outer epicardium layer and the inner endocardium layer . </P>
where is cardiac muscle tissue located in the body
where is cardiac muscle tissue located in the body
heart
heart