Mediastinal structures, lung and pleural anatomy, and thoracic vasculature relationships tested on USMLE Step 1.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What anatomical landmark marks the boundary between the superior and inferior mediastinum?
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The sternal angle (angle of Louis), at the T4/T5 disc level- What are the three subdivisions of the inferior mediastinum?
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Anterior, middle, and posterior mediastinum- Which mediastinal compartment contains the heart and pericardium?
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Middle mediastinum- Which mediastinal compartment contains the thymus?
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Anterior mediastinum- Which mediastinal compartment contains the esophagus?
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Posterior mediastinum- Which mediastinal compartment contains the descending thoracic aorta?
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Posterior mediastinum- Which mediastinal compartment contains the arch of the aorta?
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Superior mediastinum- The trachea bifurcates into the right and left main bronchi at vertebral level ____.
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T4/T5- How many lobes does the right lung have?
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Three (upper, middle, lower)- How many lobes does the left lung have?
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Two (upper and lower)- What fissure separates the upper and middle lobes of the right lung?
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The horizontal (minor) fissure- What fissure separates the lower lobe from the upper lobe in both lungs?
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The oblique (major) fissure- What is the name of the indentation on the anterior border of the left lung made by the heart?
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Cardiac notch- Why does an aspirated foreign body most often lodge in the right main bronchus?
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It is wider, shorter, and more vertical than the left main bronchus- At the lung hilum, what is the anterior-to-posterior order of structures?
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Vein, artery, bronchus
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