Final answer:
The lungs are composed of lobes, with the right lung having three lobes and the left lung having two lobes. The smaller size of the left lung accommodates the heart.
Step-by-step explanation:
The makeup of the lungs consists of lobes, which are sections divided by connective tissues. The right lung has three lobes: superior, middle, and inferior. The left lung has two lobes: superior and inferior. The smaller size of the left lung allows space for the heart, which is located to the left of the center of the chest.