Adapted to Roar: Functional Morphology of Tiger and Lion Vocal Folds
Figure 6
Hyaluronan is found throughout the lamina propria.
Overview of an alcian blue stain (A) and an alcian blue stain after hyaluronidase treatment (B) of two consecutive midmembraneous sections of a Siberian tiger vocal fold. Sections in (C) to (F) are larger magnifications of two different locations of the lamina propria. The locations are indicated by little squares with the respective letter in (A) and (B). (C) and (D): locations in the densely packed lamina propria without fat cells medially (LP2 in Figure 2) and (E) and (F) are lamina propria locations with fat cells laterally (LP1 in Figure 2). Scale bar in A and B is 5 mm, scale bar in C–F is 100 µm. TA: thyroarytenoid muscle; LP: lamina propria; FC: fat cells; GL: glands; EP: epithelium.