Amyocardiocyte is a heart muscle cell. it makes up the myocardium, a kind of

tissue

Explanation:

As seen in the question above, the myocardiocyte is a muscle cell in the heart. It makes up the myocardium, a kind of tissue. It assumes the function of a cardiac muscle fiber and has the ability to promote spontaneous contractions that occur spontaneously and constantly. These contractions occur because the myocardiocite is able to develop movements through the agitation of ions crossing the cell membrane.

answer; /// i believe the name your looking for is called (plaque)or check good luck