Question

Both lungs are not similar in size .why

Answer 1

our lungs are not of similar size.
Our left lung is smaller than right lung because some space is occupied by out heart.

Answer 2

The lungs are not equal in size.The right lung is shorter, because the liver sits high, tucked under the ribcase, but it is broader than the left. The left lung is smaller because of the space taken up by the heart .Each lung is separated into lobes branching off the main bronchus; the right lung has three lobes, while the left has only two lobes. As the bronchi branch out, the total area of the two new branches is larger than its parent bronchus, making it extremely easy for the air to rush into the lungs.