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Questions and Answers
Which layer of the heart is responsible for the pumping action?
Which layer of the heart is responsible for the pumping action?
- Epicardium
- Endocardium
- Myocardium (correct)
- Pericardium
What is the composition of the inner layer of the heart, the endocardium?
What is the composition of the inner layer of the heart, the endocardium?
- Endothelial tissue (correct)
- Visceral and parietal layers
- Muscle fibers
- 20 mL of fluid
Which layer of the heart is composed of muscle fibers?
Which layer of the heart is composed of muscle fibers?
- Myocardium (correct)
- Pericardium
- Epicardium
- Endocardium
What is the function of the space between the visceral and parietal layers of the pericardium?
What is the function of the space between the visceral and parietal layers of the pericardium?
What is the function of the pericardium?
What is the function of the pericardium?
Flashcards
Myocardium
Myocardium
The layer of the heart responsible for pumping action.
Endocardium composition
Endocardium composition
The inner layer of the heart made of endothelial tissue.
Myocardium functions
Myocardium functions
Composed of muscle fibers, it contracts to pump blood.
Pericardium function
Pericardium function
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Space between pericardium layers
Space between pericardium layers
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Study Notes
Layers of the Heart
- The myocardium is responsible for the pumping action of the heart, making it a crucial layer.
Composition of the Endocardium
- The endocardium, the inner layer of the heart, is composed of epithelial tissue.
Composition of the Myocardium
- The myocardium, the middle layer of the heart, is composed of muscle fibers.
Space between the Visceral and Parietal Layers
- The space between the visceral and parietal layers of the pericardium is filled with pericardial fluid, which reduces friction between the layers.
Function of the Pericardium
- The pericardium, a sac-like structure surrounding the heart, protects the heart, reduces friction, and anchors the heart to surrounding structures.
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