Fig 8 & 9. Trachea (NO-5-a)
The wall of the trachea shows the pseudostratified columnar
ciliated epithelium (PCE) located on a well-developed
basement membrane (BM). A thin lamina propria (LP) and a
dense thick submucosa (SM) underlie the respiratory
epithelium. Numerous goblet cells (GC) are evident as clear
ovoid spaces in the respiratory epithelium. Seromucous
glands (tracheal glands) (TG) are seen in the submucosa.