GENERAL HISTOLOGY

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: -Your left lung is smaller than the right because your heart is where the middle lobe on your left lung would be. Your left lung has two parts that your right lung doesn’t have: the cardiac notch (where your heart fits) and the lingula, an extension of the superior lobe.

Detailed explanation-3: -At rest the lungs together weigh about the same as the liver, which is 1/3 the volume of the lungs. 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-4: -The lungs are the most important organs of the respiratory system, and they are in charge of gas exchange. The lungs get divided into lobes and are paired; the left lung has two lobes, while the right lung consists of three lobes.

Detailed explanation-5: -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 (see diaphragm for an image of this).