41. This is achieved by a deep inhalation followed by the adduction of the vocal folds . 42. But glottis is not active articulator because it is only a space between vocal folds . 43. Gender may be another predisposing factor, as vocal fold nodules occur more frequently in females. 44. Below the vocal folds it is by way of branches of the recurrent laryngeal nerve. 45. Hoarseness rarely occurs in bilaterally paralyzed vocal folds . 46. Vocal fold nodules occur more frequently in females.47. Boseley and Hartnick examined at the development and maturation of pediatric human vocal fold lamina propria. 48. Above the vocal folds the sensory innervation of the larynx is via the internal laryngeal nerve. 49. Injury to the external laryngeal nerve causes weakened phonation because the vocal folds cannot be tightened. 50. The muscles surrounding the appendix compress it until mucus is secreted to lubricate the vocal folds .
