Final answer:
The right lung has two fissures: the horizontal fissure separates the superior and middle lobes, while the oblique fissure separates the middle and inferior lobes.
Step-by-step explanation:
The Fissures of the Right Lung
The right lung comprises three lobes - the superior, middle, and inferior lobes. The lobes of the lung are separated by distinct fissures. Specifically, for the right lung, there are two fissures: the horizontal fissure and the oblique fissure. The horizontal fissure separates the superior lobe from the middle lobe, and the oblique fissure divides the middle lobe from the inferior lobe. These fissures provide the anatomical boundaries between lobes, enabling the diseased parts to be removed surgically with minimal effect on neighboring segments due to the compartmentalization of the bronchopulmonary segments.
The pleura, which consists of both the visceral and parietal layers, plays a part in lung protection and function while allowing these divisions to be movable during respiration without causing damage.