Observe the distribution of mixed glands, their abundance in the false vocal fold and their absence from the true vocal cords. Identify the dense vocal ligament and the vocalis muscle. Classify the cartilage in the epiglottis and thyroid cartilage. In some of the slides you may observe focal ossification of the thyroid cartilage. Adjacent cartilages are connected by dense fibro-elastic membranes.
Reticular fibers are abundant below the basal lamina.
Figure 6 . Slide 90 Trachea. Identify the four layers of the trachea. Classify the glands present in the submucosal. Observe the unusually thick basement membrane underlying the epithelium.