External Intercostals
Internal intercostal muscle
Principal bronchi
Hilum
Superior lobe
Inferior Lobe
Pulmonary Arteries
Pulmonary Veins
Right atrium
Coronary sinus
Right auricle
Fossa Ovale
Tricuspid Valve
Tricuspid Valve
Papillary muscles
Infundibulum
Chordae tendineae