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4 Written questions

4 Multiple choice questions

  1. -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
  2. It separates the atria and ventricles
  3. -pass through pericardium to diaphragm
    -pass over root of lungs
    Innervate:
    -mediastinal pleura
    -fibrous pericardium
    -diaphragm
  4. 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

4 True/False questions

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

          

  2. What is the pericardium and what are its components?*sac surrounding heart and roots of great vessels
    1. fibrous pericardium
    2. Serous pericardium

          

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

          

  4. What is the serous pericardium?*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