cardiac/heart muscle (myocardium)

Structure

• the muscular wall of the heart located between the inner endocardial layer & the outer epicardial layer.
• the cardiac myocytes are fused multinucleated cells.

Pathology

• it is commonly believed that cardiac muscle cannot regenerate.
• according to ref 1b, humans may have undifferentiated progenitor cells in both cardiac tissue & in circulation.
• these cells may help repair injury & may keep the myocardium healthy in the absence of overt injury.

Component of

• heart