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4 Written questions

4 Multiple choice questions

  1. *transverse plane extending back from the sternal angle to the intervertebral disc btw. T4 and T5
    *Separates mediastinum into superior and inferior compartments
  2. It separates the atria and ventricles
  3. -pass through pericardium to diaphragm
    -pass over root of lungs
    -mediastinal pleura
    -fibrous pericardium
  4. -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 True/False questions

  1. 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


  2. What vessels return blood to the R atrium?-superior vena cava
    -inferior vena cava
    -coronary sinus (returns venous blood from heart itself)


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


  4. What are the major structures of the anterior mediastinum?1. pericardium
    2. heart
    3. origin of great vessels:
    -ascending aorta
    -pulmonary arteries
    -pulmonary veins
    -superior vena cava
    -inferior vena cava
    4. Phrenic nerves