Cardiovascular System: Pericardium
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Questions and Answers

What is the fibroserous sac that encloses the heart and the roots of the great vessels?

  • Myocardium
  • Endocardium
  • Epicardium
  • Pericardium (correct)

    • Which structure is innervated by vasomotor and sensory fibers from the phrenic and vagus nerves and the sympathetic trunks?

  • Serous pericardium
  • Fibrous pericardium
  • pericardium (correct)
  • Myocardium

    • Which layer forms the outer layer (epicardium) of the heart wall and the roots of the great vessels?

  • Parietal pericardium
  • Endocardium
  • Visceral pericardium (correct)
  • Fibrous pericardium

    • Where is the potential space between the visceral layer of the serous pericardium (epicardium) and the parietal layer of the serous pericardium located?

    <p>Pericardial cavity</p> Signup and view all the answers

    Where is the transverse pericardial sinus located in relation to specific cardiovascular structures?

    <p>Posterior to the ascending aorta and pulmonary trunk</p> Signup and view all the answers

    What is the composition of the pericardial cavity?

    <p>It is a potential space between the visceral layer of the serous pericardium and the parietal layer of the serous pericardium lining the inner surfaces of the fibrous pericardium.</p> Signup and view all the answers

    Which structure is innervated by vasomotor and sensory fibers from the phrenic and vagus nerves and the sympathetic trunks?

    <p>Fibrous pericardium</p> Signup and view all the answers

    Where is the transverse pericardial sinus located in relation to specific cardiovascular structures?

    <p>Posterior to the ascending aorta and pulmonary trunk. Anterior to the superior vena cava. Superior to the left atrium.</p> Signup and view all the answers

    What is the main function of the fibrous pericardium?

    <p>To provide a strong, dense, fibrous layer that supports and protects the heart.</p> Signup and view all the answers

    Which layer lines the inner surface of the fibrous pericardium and forms the outer layer (epicardium) of the heart wall and the roots of the great vessels?

    <p>Visceral layer of serous pericardium</p> Signup and view all the answers

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