MEDICAL
PLEURA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Right
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Left
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Either A or B
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None of the above
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Detailed explanation-1: -The right lung has three lobes and is slightly larger than the left lung, which has two lobes. The lungs are separated by the mediastinum. This area contains the heart, trachea, esophagus, and many lymph nodes.
Detailed explanation-2: -In the adult, the right lung weighs about 630 grams and the left weighs 570 grams. The left lung is smaller, since the heart, which is dominantly a left sided structure, occupies part of the left chest.
Detailed explanation-3: -There is also a structural advantage to having the lungs be separate, the main one being that the bronchial tubes bifurcate naturally, and that there is a place for the heart and other “indivisible” organs in the middle. Separation also decreases the chance of problems or disease in one spreading to the other.