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 (D)</p> Signup and view all the answers

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

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

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

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

Which layer of the pericardium lines the fibrous sac?

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

What is the function of the fibrous pericardium?

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

What is the tissue composition of the fibrous pericardial sac?

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

What separates the esophagus from the heart?

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

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

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

What is the oblique pericardial sinus?

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

What structures are found in the posterior mediastinum?

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

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

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

Which vessels are most anterior in the superior mediastinum?

<p>Brachiocephalic veins (A)</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 (B)</p> Signup and view all the answers

Which structures are found in the middle mediastinum?

<p>Heart and fibrous and serous pericardia (C)</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 (B)</p> Signup and view all the answers

Which nerves are found in the middle mediastinum?

<p>Phrenic nerves and accompanying pericardiophrenic vessels (D)</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 (B)</p> Signup and view all the answers

Which vessels are branches of the subclavian vessels?

<p>Internal thoracic arteries and accompanying veins (A)</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 (D)</p> Signup and view all the answers

Are the internal thoracic vessels themselves in the mediastinum?

<p>No (A)</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 (A)</p> Signup and view all the answers

What landmark is useful for locating the tracheobronchial lymph nodes?

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

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

<p>Posterior mediastinum (C)</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 (A)</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 (C)</p> Signup and view all the answers

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