Question

multiple cholce question
cardiac muscle makes up the thickest part of the heart wall known as the
o parietal pericardium
o endocardium
o myocardium
o visceral pericardium

Explanation:

• Parietal pericardium: It is the outer layer of the pericardium (a sac around the heart), not the heart wall itself.
• Endocardium: The inner lining of the heart chambers, thin in structure.
• Myocardium: Composed of cardiac muscle, responsible for the heart's contraction, and is the thickest part of the heart wall.
• Visceral pericardium: Part of the pericardium (closer to the heart compared to parietal pericardium), not the heart wall.

Answer:

myocardium