Fig. 1From: Stem cell therapy for vocal fold regeneration after scarring: a review of experimental approachesStructure of the normal and damaged vocal folds. The VF are covered with the squamous epithelium separated by the basement membrane from the lamina propria and muscle vocalis. The lamina propria consists of three layers: superficial (Reinke’s space) (I), intermediate (II), and deep (III)Back to article page