Which fissure separates the right inferior lobe from the superior and middle lobes?

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Multiple Choice

Which fissure separates the right inferior lobe from the superior and middle lobes?

Explanation:
In the right lung, the lobes are separated by two fissures: the horizontal fissure divides the superior lobe from the middle lobe, while the oblique fissure runs diagonally and separates the inferior lobe from both the superior and middle lobes. Therefore, the fissure that separates the right inferior lobe from the superior and middle lobes is the oblique fissure. The other options don’t fit: the horizontal fissure would only separate superior from middle, the cardiac notch is a feature of the left lung, and interlobular fissures aren’t the boundary between these three lobes.

In the right lung, the lobes are separated by two fissures: the horizontal fissure divides the superior lobe from the middle lobe, while the oblique fissure runs diagonally and separates the inferior lobe from both the superior and middle lobes. Therefore, the fissure that separates the right inferior lobe from the superior and middle lobes is the oblique fissure. The other options don’t fit: the horizontal fissure would only separate superior from middle, the cardiac notch is a feature of the left lung, and interlobular fissures aren’t the boundary between these three lobes.

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