Page 669 - Atlas of Histology with Functional Correlations
P. 669
FIGURE 17.8 ■ Larynx (frontal section). Stain: hematoxylin and eosin. Low
magnification.
FIGURE 17.9 | Trachea (Panoramic View,
Transverse Section)
The wall of the trachea consists of mucosa, submucosa, hyaline cartilage, and
adventitia. The trachea is kept patent (open) by C-shaped hyaline cartilage (3)
rings that are surrounded by perichondrium (9), which merges with the
submucosa (4) on one side and the adventitia (1) on the other. Nerves (6), blood
vessels (8), and adipose tissue (2) are located in the adventitia.
The gap between the posterior ends of the hyaline cartilage (3) is filled by
the smooth trachealis muscle (7) that lies deep to the elastic membrane (14) of
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