When cardiac muscle cells are damaged by a heart attack, they are usually replaced by
A. connective tissue cells
B. new smooth muscle cells
C. new cardiac muscle cells
D. epithelial cells
Correct Answer :
A. connective tissue cells
Cardiac muscle cells or cardiac myocytes are the muscle cells (myocytes) that make up the cardiac muscle. When these cells are damaged by a heart attack, they are usually replaced by connective muscle cells.