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Questions and Answers
What structures are located in the middle mediastinum?
What structures are located in the middle mediastinum?
Heart, pericardium, great vessels, trachea, esophagus
What are the two layers of the pericardium?
What are the two layers of the pericardium?
Fibrous pericardium and serous pericardium
What is the function of the fibrous pericardium?
What is the function of the fibrous pericardium?
Protects the heart, anchors it to surrounding structures, prevents overfilling of the heart
What is the myocardium responsible for?
What is the myocardium responsible for?
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What is the endocardium's function?
What is the endocardium's function?
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What is the visceral layer of the serous pericardium also known as?
What is the visceral layer of the serous pericardium also known as?
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What is the function of the fibrous skeleton of the heart?
What is the function of the fibrous skeleton of the heart?
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What are the two parts of the fibrous skeleton of the heart?
What are the two parts of the fibrous skeleton of the heart?
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What is the purpose of the flat sheets within the fibrous skeleton of the heart?
What is the purpose of the flat sheets within the fibrous skeleton of the heart?
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What is the significance of the Pectinate Muscles in the right atrium?
What is the significance of the Pectinate Muscles in the right atrium?
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What is the function of the appendages called Auricles in the atria?
What is the function of the appendages called Auricles in the atria?
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What is the role of Rings in the fibrous skeleton of the heart?
What is the role of Rings in the fibrous skeleton of the heart?
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What are the three veins through which blood enters the heart?
What are the three veins through which blood enters the heart?
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Which chamber of the heart receives blood from the 4 pulmonary veins?
Which chamber of the heart receives blood from the 4 pulmonary veins?
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What structures line the internal walls of the ventricles?
What structures line the internal walls of the ventricles?
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Which ventricle is responsible for the systemic circulation?
Which ventricle is responsible for the systemic circulation?
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What landmark of the heart encircles the junction between the atria and ventricles?
What landmark of the heart encircles the junction between the atria and ventricles?
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What structure separates the right and left ventricles anteriorly?
What structure separates the right and left ventricles anteriorly?
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What channels close during repolarization?
What channels close during repolarization?
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What is the result of the efflux of K+ ions during repolarization?
What is the result of the efflux of K+ ions during repolarization?
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How are excess Na+ ions removed from the cell?
How are excess Na+ ions removed from the cell?
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What replaces the deficit of K+ ions in the cell during repolarization?
What replaces the deficit of K+ ions in the cell during repolarization?
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How is the excess Ca+ from the Plateau Phase eliminated?
How is the excess Ca+ from the Plateau Phase eliminated?
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How long is the Absolute Refractory Period in cardiac muscle?
How long is the Absolute Refractory Period in cardiac muscle?
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What does the Posterior Interventricular Sulcus separate posteriorly?
What does the Posterior Interventricular Sulcus separate posteriorly?
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What is the function of the Anterior InterVentricular Artery?
What is the function of the Anterior InterVentricular Artery?
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Where does the blood flow after it gains oxygen in the pulmonary circuit?
Where does the blood flow after it gains oxygen in the pulmonary circuit?
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What causes the color change from blue to red in blood flowing through the pulmonary circuit?
What causes the color change from blue to red in blood flowing through the pulmonary circuit?
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Where do the arteries supplying the myocardium lie to prevent contractions from inhibiting blood flow?
Where do the arteries supplying the myocardium lie to prevent contractions from inhibiting blood flow?
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What is the arterial supply that encircles the heart in the coronary sulcus?
What is the arterial supply that encircles the heart in the coronary sulcus?
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