Lingula Diagram, This small projection extends downward and forward, resembling a tongue-like structure. Characteristic features: This leaves an impression on the antero-inferior aspect of the superior lobe and also shapes a tongue-like process called the lingula. Next, there are the lung surfaces. Dive deep now! The anterior border of the left lung presents with a deep notch called the cardiac notch. Its function is to facilitate gas exchange, allowing oxygen to enter the bloodstream and carbon dioxide to be removed. Figure 7 - Hilum of lung - Root of lung - Superior lobe; Upper lobe - Lingula of left lung - Middle lobe of right lung - Inferior lobe; Lower lobe Download scientific diagram | Anatomy of the human lung. The . Download scientific diagram | Anatomy of the human lung. It is created by the apex of the heart. The term "lingula" means "little tongue" in Latin, reflecting its tongue-like projection from the anterior-inferior portion of the left upper lobe. sl8l, db4l, ww1b46, 7d7pm, rh3zzg, 4nk, er, gle, jzu, iqtw,