The Respiratory System (Credit: Single Cell Animation) The Lungs are different from one another. The right consists of three lobes, Superior, Middle, and Inferior, while the left only has two, the Superior and Inferior. The Lungs are encased by the Pleura, a membrane surface that lubricates the lungs movement while we breathe. The Diaphragm is a muscle that helps pump air into and out of the lungs. As it contracts (moves down), the air is sucked in, as it relaxes, the air is pushed out. | Hashem