Thorax 
I Lobus sinister a 
I Lobus cranialis dexter b 
I Lobus tnedius dexter c 
Lobus caudalis dexter d 
Lobus accessonus dexter e 
I Lobus intermedius accessorius e' 
Figure 4-26: Sagittal section of right cranial pulmo- 
nary lobe after formalin fixation. HytrastRwas instilled 
intratracheally (Byk Gulden) before death so that 
bronchi are prominent. In this section, larger lobar 
bronchus gives rise to three smaller segmental bronchi. 
Figure 4-25: Schematic drawing of lungs and bron- 
chial tree. Right lung consists of five lobes; left remains 
undivided. Left main bronchus does not form lobar 
bronchi as does right. 
115 
