Mediastinum Quiz
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Questions and Answers

According to the text, what are the subdivisions of the mediastinum?

  • Anterior, posterior
  • Superior, inferior
  • Anterior, middle, posterior (correct)
  • Superior, middle, inferior

    • What is the anatomical relationship between the mediastinum and the lungs?

  • The mediastinum is located posterior to the lungs
  • The mediastinum is located inferior to the lungs
  • The mediastinum is located superior to the lungs
  • The mediastinum is located anterior to the lungs (correct)

    • What is the purpose of the transverse thoracic plane?

  • To divide the superior and inferior portions of the mediastinum (correct)
  • To visualize the contents of the mediastinum
  • To separate the mediastinum from the thoracic cage
  • To locate the components of the thoracic cage

    • At what vertebral level does the mediastinum begin?

    <p>T4/5</p> Signup and view all the answers

    What is the joint between the manubrium and body of the sternum called?

    <p>Manubriosternal joint</p> Signup and view all the answers

    What is the joint between the body and xiphoid process of the sternum called?

    <p>Xiphi-sternal joint</p> Signup and view all the answers

    What is the palpable landmark used to locate the sternal angle?

    <p>Sternal angle</p> Signup and view all the answers

    Which layer of the pericardium lines the fibrous sac?

    <p>Parietal serous layer</p> Signup and view all the answers

    What is the function of the fibrous pericardium?

    <p>To maintain the heart in place</p> Signup and view all the answers

    What is the tissue composition of the fibrous pericardial sac?

    <p>Fibrous connective tissue</p> Signup and view all the answers

    What separates the esophagus from the heart?

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

    Where does the azygous vein drain into the superior vena cava (SVC)?

    <p>Left venous angle</p> Signup and view all the answers

    What is the oblique pericardial sinus?

    <p>A space between the parietal and visceral serous pericardium</p> Signup and view all the answers

    What structures are found in the posterior mediastinum?

    <p>All of the above</p> Signup and view all the answers

    Which vertebral level separates the superior mediastinum from the inferior mediastinum?

    <p>T4/T5</p> Signup and view all the answers

    Which vessels are most anterior in the superior mediastinum?

    <p>Brachiocephalic veins</p> Signup and view all the answers

    What is the primary occupant of the anterior mediastinum in adults?

    <p>Inferior portion of the thymus or thymic remnants</p> Signup and view all the answers

    Which structures are found in the middle mediastinum?

    <p>Heart and fibrous and serous pericardia</p> Signup and view all the answers

    Which vessels terminate in the middle mediastinum?

    <p>Inferior ½ of Superior Vena Cava and termination of the azygous vein</p> Signup and view all the answers

    Which nerves are found in the middle mediastinum?

    <p>Phrenic nerves and accompanying pericardiophrenic vessels</p> Signup and view all the answers

    What is the relationship between the fibrous pericardial sac and the thoraco-abdominal diaphragm?

    <p>Fused to the superior surface of the thoracoabdominal diaphragm</p> Signup and view all the answers

    Which vessels are branches of the subclavian vessels?

    <p>Internal thoracic arteries and accompanying veins</p> Signup and view all the answers

    Where do the internal thoracic vessels run?

    <p>Along the inside of the ribcage on either side of the sternum</p> Signup and view all the answers

    Are the internal thoracic vessels themselves in the mediastinum?

    <p>No</p> Signup and view all the answers

    What is the purpose of the axial CT sections shown in the text?

    <p>To provide a key for identifying structures in the chest</p> Signup and view all the answers

    What landmark is useful for locating the tracheobronchial lymph nodes?

    <p>The clavicle</p> Signup and view all the answers

    At what vertebral level is the transverse section through the heart shown in the text?

    <p>T-8</p> Signup and view all the answers

    What part(s) of the mediastinum do the tracheobronchial lymph nodes occupy?

    <p>Posterior mediastinum</p> Signup and view all the answers

    Why is the right recurrent laryngeal nerve not symptomatic in thoracic pathologies to the extent that the left recurrent is?

    <p>The right recurrent laryngeal nerve has a different anatomical course</p> Signup and view all the answers

    What structures and features are provided on the session structure list?

    <p>The contents of the posterior mediastinum</p> Signup and view all the answers

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