SECTRA TABLE WORK: Page 4 of 4
Now let's examine the left lung.
As with the right lung, rotate the model with each highlighted lobe to identify the oblque fissure separating the lobes, and observe their orientation relative to major mediastinal structures.
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| Tap on image to enlarge |
| Add the left lung. | |
| Add the superior lobe of the left lung. The apex of this lobe extends above the first rib. Demonstrate this by adding the first rib to the 3D model. |
Although not specifically labeled in the structure index, identify the lingula (the tongue-like projection of the superior lobe that covers the anterior surface of the heart).
View the cross-section of the model to better visualize this region.
| Add the inferior lobe of the left lung. |
Knowing the positions of the superior and inferior lobes of the left lung, where you would place your stethoscope to best hear breath sounds from each lobe?