Asked by Akakhel Zalmai on Jul 20, 2024
Verified
Which of the following layers forms the bulk of the heart wall?
A) Epicardium
B) Pericardium
C) Endocardium
D) Myocardium
E) Visceral pericardium
Myocardium
The thick middle layer of the heart wall composed of cardiac muscle cells; responsible for the heart's contractile activity.
Epicardium
The outermost layer of the heart's wall, part of the heart's protective covering and involved in the production of pericardial fluid.
- Elaborate on the heart's structural composition, highlighting its chambers, valves, and vessels.
Verified Answer
BW
brianna wrightJul 26, 2024
Final Answer :
D
Explanation :
The myocardium forms the bulk of the heart wall and is responsible for the heart's contractile function.
Learning Objectives
- Elaborate on the heart's structural composition, highlighting its chambers, valves, and vessels.