MEDICAL
PLEURA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the anterior border of the right lung
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anterior border of left lung
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lower border of right lung
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posterior border of left lung
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Detailed explanation-1: -The anterior border of the lung corresponds to the pleural reflection, and it creates a cardiac notch in the left lung. The cardiac notch is a concavity in the lung that formes to accommodate the heart. The inferior border is thin and separates the base of the lung from the costal surface.
Detailed explanation-2: -The left lung has a depression on the medial side of its surface called the cardiac notch, a concave impression molded to accommodate the shape of the heart. Above and behind the cardiac impression is a triangular depression named the hilum.
Detailed explanation-3: -There is a rounded posterior border that separates the vertebral part of the medial surface from the costal part. Unlike other lung borders, the posterior border is an imaginary line that coincides with the heads of the adjacent ribs. Anteriorly, the costal and medial surfaces of the lung meet at the anterior border.