Final answer:
Loss of oxygenated blood to the heart muscle results in myocardial infarction, also known as a heart attack, leading to the death of cardiac muscle cells.
Step-by-step explanation:
When the muscle of the heart suffers a loss of oxygenated blood, it results in a condition called myocardial infarction, also known as a heart attack. Myocardial infarction occurs when a coronary artery is blocked, preventing blood flow and oxygen supply to a region of the heart. This leads to the death of cardiac muscle cells, which cannot be replaced.