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4 Written Questions

4 Multiple Choice Questions

  1. *sac surrounding heart and roots of great vessels
    1. fibrous pericardium
    2. Serous pericardium
  2. anterior surface: mainly rt ventricle, small contributions from rt atrium and lt ventricle
    diaphragmatic surface: lt ventricle, small part rt ventricle
    L pulmonary: L ventricle, L atrium
    R pulmonary: R atrium
    Base (posterior surface): L atrium, small part R atrium, proximal parts great veins
  3. *areas of continuity between the parietal and visceral serous pericardium around great vessels, creat reflections of serous pericardium
    1. Transverse pericardial sinus: separates aorta and pulmonary artery from the superior vena cava
    2. oblique pericardial sinus: formed by reflection of serous pericardium onto pulmonary veins
  4. -superior vena cava
    -inferior vena cava
    -coronary sinus (returns venous blood from heart itself)

4 True/False Questions

  1. Where is the coronary sulcus?*2 layers
    1. parietal: lines inner surface fibrous pericardium
    2. visceral: adheres to heart and forms its outer coating-->epicardium
    *serous pericardium continuous at the roots of the great vessel
    *everywhere else there is a narrow space between them called the pericardial cavity


  2. What are the major structures of the middle mediastinum?**thymus (may not be evident in cadaver)
    -connective tissue
    -lymph nodes
    -branches of internal thoracic vessels
    -sternopericardial ligaments


  3. What is the fibrous pericardium?-tough connective tissue layer that defines the boundaries of the middle mediastinum
    -cone shaped bag, attached to diaphragm at base, continuous with adventitia of great vessels at apex


  4. Describe the location and purpose of the phrenic nerve*transverse plane extending back from the sternal angle to the intervertebral disc btw. T4 and T5
    *Separates mediastinum into superior and inferior compartments


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