Name the tough outermost layer of the sac that surrounds the heart.Multiple ChoiceEndocardiumVisceral pericardiumFibrous pericardiumEpicardium
Question
Name the tough outermost layer of the sac that surrounds the heart.
- Multiple Choice
- Endocardium
- Visceral pericardium
- Fibrous pericardium
- Epicardium
Solution
The tough outermost layer of the sac that surrounds the heart is called the Fibrous pericardium.
To clarify:
- Endocardium: This is the innermost layer of the heart, lining the chambers and valves.
- Visceral pericardium: Also known as the epicardium, this is the inner layer of the pericardium that is closely adherent to the surface of the heart.
- Fibrous pericardium: This is the tough, dense connective tissue layer that forms the outer part of the pericardial sac and provides protection and stability to the heart.
Thus, the correct choice is Fibrous pericardium.
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