1 — Oblique fissure; 2 — Lobar bronchus; 3 — Inferior lobe; Lower lobe; 4 — Posterior border; 5 — Base of lung; 6 — Costal surface; 7 — Apex
of lung; 8 — Trachea; 9 — Left main bronchus; 10 — Superior lobe; Upper lobe
1 — Oblique fissure; 2 — Lobar bronchus; 3 — Inferior lobe; Lower lobe; 4 — Posterior border; 5 — Base of lung; 6 — Costal surface; 7 — Apex
of lung; 8 — Trachea; 9 — Left main bronchus; 10 — Superior lobe; Upper lobe