Final answer:
The horizontal fissure of the right lung separates the superior and middle lobes from the inferior lobe.
Step-by-step explanation:
The horizontal fissure of the right lung is a landmark that separates the superior and middle lobes from the inferior lobe.
- It starts from the oblique fissure and extends horizontally towards the hilum of the lung.
- The fissure can be seen on both the mediastinal surface, which faces the midline, and the diaphragmatic surface, which faces the diaphragm.
- The presence of the horizontal fissure in the right lung allows for the division of the lung into three lobes.